[Bug 783002] New: Standard firewall blocks IPv6 UDP ports 546 and 5353

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bugzilla_noreply＠novell.com

1 Oct 2012 1 Oct '12

13:13

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c0 Summary: Standard firewall blocks IPv6 UDP ports 546 and 5353 Classification: openSUSE Product: openSUSE 12.2 Version: Final Platform: x86-64 OS/Version: openSUSE 12.2 Status: NEW Severity: Normal Priority: P5 - None Component: Network AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: f.de.kruijf@gmail.com QAContact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20100101 Firefox/15.0.1 It appears that the IPv4 UDP ports 46 (DHCP) and 5353 (mDNS) are opened by default in SuSEfirewall2, however the equivalent ports in IPv6 UDP port 546 and UDP 5353 are blocked (dropped). This causes problems in establishing a stable connection using NetworkManager. See bug#778434. Reproducible: Always Steps to Reproduce: 1. 2. 3. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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bugzilla_noreply＠novell.com

2 Oct 2 Oct

06:57

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c1 Marcus Meissner changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |lnussel@suse.com, | |meissner@suse.com AssignedTo|bnc-team-screening@forge.pr |meissner@suse.com |ovo.novell.com | --- Comment #1 from Marcus Meissner 2012-10-02 06:57:38 UTC --- hmm -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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07:05

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c2 --- Comment #2 from Marcus Meissner 2012-10-02 07:05:40 UTC --- no ports are opened by default usually, but if applications send stuff out over ports, they are associated open for a bit. need to be looked at -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

08:03

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c3 --- Comment #3 from Ludwig Nussel 2012-10-02 10:03:24 CEST --- The difference between ipv4 dhcp and ipv6 dhcp could be that the former might use raw sockets to bypass the packet filter. mDNS should be unrelated to the problems you describe. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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08:20

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c4 --- Comment #4 from Freek de Kruijf 2012-10-02 08:20:44 UTC --- I will repeat the tests I did with the current 0.9.4 NetworkManager, enabling and disabling the filters for these ports in the firewall. Both in an environment with a wired and a wireless interface. These two environments were more stable with the filters, however not stable enough. In the wireless environment after about 15 minutes the connection is broken and need a restart. In the wired environment the connection in broken for a few seconds, but establishes a new connection automatically. In case you have suggestions, please mention these. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

3 Oct 3 Oct

09:30

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c5 --- Comment #5 from Freek de Kruijf 2012-10-03 09:30:50 UTC --- In the wired environment I removed the filter for port 5353 and nothing changed in the stability of the connection. However enabling the filter for 546 made the connection stay for about 20 minutes after which it reconnects automatically. Without that filter the connection stays for about 45 seconds and reconnects automatically. I attach the files /var/log/firewall and /var/log/NetworkManager, the 1 version in case there is no filter allowing packets to port 546 and the 2 version in which that filter allows access for those packets. The disconnect after about 20 minutes seems to be a bug in NetworkManager. Next test will be in the wireless environment. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

09:32

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c6 --- Comment #6 from Freek de Kruijf 2012-10-03 09:32:08 UTC --- Created an attachment (id=508098) --> (http://bugzilla.novell.com/attachment.cgi?id=508098) firewall log in case access to port 546 is not allowed -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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09:35

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c7 --- Comment #7 from Freek de Kruijf 2012-10-03 09:35:20 UTC --- Created an attachment (id=508100) --> (http://bugzilla.novell.com/attachment.cgi?id=508100) NetworkManager log in case access to port 546 is not allowed The timeouts of DHCP6 after 45 seconds causes a disconnect. Apparently this is because the expected packet(s) do(es) not arrive within that time. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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09:36

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c Freek de Kruijf changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #508100|application/octet-stream |text/plain mime type| | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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09:37

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c8 --- Comment #8 from Freek de Kruijf 2012-10-03 09:37:14 UTC --- Created an attachment (id=508101) --> (http://bugzilla.novell.com/attachment.cgi?id=508101) firewall log in case access to port 546 is allowed -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

09:39

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c9 --- Comment #9 from Freek de Kruijf 2012-10-03 09:39:04 UTC --- Created an attachment (id=508102) --> (http://bugzilla.novell.com/attachment.cgi?id=508102) NetworkManager log in case access to port 546 is allowed Here you can see that the connection stays for about 20 minutes -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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12:01

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c10 --- Comment #10 from Freek de Kruijf 2012-10-03 12:01:43 UTC --- Created an attachment (id=508115) --> (http://bugzilla.novell.com/attachment.cgi?id=508115) firewall log in case access to port 546 is not allowed using wireless Now using NetworkManager 0.9.4 in which case the connection is automatically restored, where 0.9.0.2 did not do that -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

12:05

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c11 --- Comment #11 from Freek de Kruijf 2012-10-03 12:05:34 UTC --- Created an attachment (id=508118) --> (http://bugzilla.novell.com/attachment.cgi?id=508118) NetworkManager log in case access to port 546 is not allowed using wireless After the 45 seconds timeout of DHCP6 the connection needs to be restarted, which is almost once per minute. In contrary to the previous version of NetworkManager the reconnect is automatically. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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12:08

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c12 --- Comment #12 from Freek de Kruijf 2012-10-03 12:08:29 UTC --- Created an attachment (id=508120) --> (http://bugzilla.novell.com/attachment.cgi?id=508120) firewall log in case access to port 546 is allowed using wireless Also note that using wireless a filter in SuSEfirewall2 allows packets to UDP port 5353. Removing this filter does not change anything is respect to the stability of the connection. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

12:09

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c13 --- Comment #13 from Freek de Kruijf 2012-10-03 12:09:15 UTC --- Created an attachment (id=508121) --> (http://bugzilla.novell.com/attachment.cgi?id=508121) NetworkManager log in case access to port 546 is allowed using wireless -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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4 Oct 4 Oct

21:50

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c14 --- Comment #14 from Freek de Kruijf 2012-10-04 21:50:56 UTC --- I did build the 0.9.7 version of NetworkManager and tested it in both the wireless and wired environment. The file /var/log/NetworkManager only has log lines from the start of NetworkManager. After that there are no more log lines in contrary to version 0.9.4. However this is only true when /etc/sysconfig/SuSEfirewall2 contains a filter to accept packages to IPv6 UDP port 564 from fe80::/64. Otherwise there is a timeout after 45 seconds for DHCP6, which resets the interface. So in that case the connection is unstable. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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5 Oct 5 Oct

23:25

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c15 --- Comment #15 from Freek de Kruijf 2012-10-05 23:25:31 UTC --- The problem seems to be that the kernel (ip6tables?) does not notice the sending of the DHCPv6 solicitation request from the client, which is an outgoing packet, and after that does not allows an answer, advertisement, on that packet to be accepted. After which the client sends a request and should be allowed to receive the reply. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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23:31

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c16 --- Comment #16 from Freek de Kruijf 2012-10-05 23:31:24 UTC --- (In reply to comment #2)

...

no ports are opened by default usually, but if applications send stuff out over ports, they are associated open for a bit.

need to be looked at

This assumption seems to be not true, the port is not opened for a bit. I will attach a wireshark trace file in which at first the firewall blocks the answer from the DHCPv6 server. At the end of the trace the firewall allows these packets and the client sends a request which receives a reply from the server. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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23:32

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c17 --- Comment #17 from Freek de Kruijf 2012-10-05 23:32:50 UTC --- Created an attachment (id=508434) --> (http://bugzilla.novell.com/attachment.cgi?id=508434) libpcap formatted file with ICMPv6 and DHCPv6 packets -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

11 Oct 11 Oct

14:41

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c18 --- Comment #18 from Marcus Meissner 2012-10-11 14:41:55 UTC --- looked through susefirewall a bit, the conntrack related rules are setup same as ipv4. need to dig deeper. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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22:02

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c19 --- Comment #19 from Freek de Kruijf 2012-10-11 22:02:04 UTC --- The main difference for DHCP is that IPv4 starts with a broadcast and IPv6 with a multicast. In case you need some package catching, I can make these with wireshark. In fact I do have three cases already, each one corresponding with the three choices my router provides with DHCP. Only providing DNS server, DNS + prefix and DNS + prefix + IPv6 address. In the last case the router only provides the address derived from the MAC address. So the router needs some more improvements. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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16 Oct 16 Oct

07:07

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c20 Marcus Meissner changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO CC| |jengelh@inai.de InfoProvider| |jengelh@inai.de --- Comment #20 from Marcus Meissner 2012-10-16 07:07:49 UTC --- Thanks for the detailed evaluation! A correct solution would be some kind of conntrack module that briefly opens this port if an outgoing packet is received. http://www.spinics.net/lists/netfilter-devel/msg20826.html has a draft patch which is however not yet in the mainline kernel. Not exactly sure what the merge status is here ... perhaps Jan knows? As a temporary workaround we might have to allow the ipv6/546 port -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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17 Oct 17 Oct

14:03

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c21 Jan Engelhardt changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|jengelh@inai.de | --- Comment #21 from Jan Engelhardt 2012-10-17 16:03:50 CEST --- The DHCPv6 tracker has not been merged so far. What you can do is increase the timeout value: ip6tables -t mangle -A PREROUTING -p udp --dport 546 -j CT --timeout dhcp6 nfct timeout add dhcp6 inet6 udp unreplied 45 replied 60 to set the default timeout values for the unreplied and replied state to 45 and 60 s, respectively. (The system default is 30 s, and nfct(8) allows more fine-grained control over that.) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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14:37

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c22 --- Comment #22 from Freek de Kruijf 2012-10-17 14:37:34 UTC --- In case the only change is to raise the timeout value I have my doubts that this helps. When I look at the timing of a complete DHCPv6 exchange, I see, in sequence, 2 solicit, 1 advertise, 2 request and 1 reply packet. The time between the first packet from the client and last packet from the server is 1.025 seconds. This is when I set the firewall to allow IPv6 UDP port 546 coming into the system with the client. Otherwise the advertise packet is dropped by the firewall. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

15:28

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c23 --- Comment #23 from Jan Engelhardt 2012-10-17 17:28:07 CEST --- I don't spot the problem - what exactly is the issue? Leaving NM out of the picture would simplify it probably, as well. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

15:38

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c24 --- Comment #24 from Marcus Meissner 2012-10-17 15:38:34 UTC --- the problem is that the outgoing DHCPv6 request goes to a multicast address, but return packet comes from a specific host. so a related rule is not possible, it needs some special conntrack registering hook. as in ... outbound packet ... open port 546 for some seconds -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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16:21

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c25 --- Comment #25 from Freek de Kruijf 2012-10-17 16:21:07 UTC --- To be precise the above mentioned solicit and request packages from the client go to a multicast address ff02::1:2, MAC address 33:33:00:01:00:02. The advertise and reply packets from the server have the MAC addresses of the sender, a server, and the receiver, the client. NM is not important for the result, most likely there is no outside network connection at least not with the requires IPv6 address. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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21:48

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c26 --- Comment #26 from Freek de Kruijf 2012-10-17 21:48:21 UTC --- When you look at the issue with port 546, you might as well look at port 5353. In this case all packages to udp port 5353 have destination addresses: multicast IPv6 address ff02::fb, MAC address 33:33:00:00:00:fb, there is no unicast involved. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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1 Dec 1 Dec

11:42

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c27 --- Comment #27 from Freek de Kruijf 2012-12-01 11:42:40 UTC --- Any progress on this issue? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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12 Jan 12 Jan

23:34

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c28 --- Comment #28 from Jan Engelhardt 2013-01-13 00:34:02 CET --- IIRC, what the conntrack maintainer suggests is that the userspace helper infrastructure that has recently been added to the kernel can be used to write helpers for e.g. DHCP. For further inquiries, contact Pablo Ayuso or netfilter-devel@vger.kernel.org. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

23:35

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c29 --- Comment #29 from Jan Engelhardt 2013-01-13 00:35:34 CET --- Quoting, """We now have the user-space infrastructure in mainline. Implementing this in user-space should be fairly easy. It will just require a small port of that patch [p1] and running conntrackd.""" [p1] http://www.spinics.net/lists/netfilter-devel/msg20826.html -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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14 Jan 14 Jan

21:05

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c30 --- Comment #30 from Freek de Kruijf 2013-01-14 21:05:56 UTC --- I don't understand these solutions. My reasoning is that these DHCP packages and port 5353 packages are all coming from a link local address or are even multicast packages, so originate from a system on the link. I may be wrong, but why is it not possible to allow all these ipv6 packages by default in ip6tables? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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24 Jan 24 Jan

16:05

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c31 --- Comment #31 from Marcus Meissner 2013-01-24 16:05:20 UTC --- I am trying to contact Pablo to get this forward. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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7 Mar 7 Mar

15:06

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c Freek de Kruijf changed: What |Removed |Added ---------------------------------------------------------------------------- Component|Network |Network Version|Final |RC 2 AssignedTo|meissner@suse.com |mt@suse.com Product|openSUSE 12.2 |openSUSE 12.3 OS/Version|openSUSE 12.2 |SUSE Other -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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12 Mar 12 Mar

15:13

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c32 --- Comment #32 from Marius Tomaschewski 2013-03-12 15:13:27 UTC --- Created an attachment (id=529333) --> (http://bugzilla.novell.com/attachment.cgi?id=529333) SuSEfirewall2.dhcp6-server template BTW: The dhcp server does not ship any dhcpv6 server template yet. I'm going to add it (opens the dhcpv6-server 547/udp port only) to the package with reference to this bug. Unfortunately, the templates do not allow to specify IPv6-only or IPv4-only ports, so when it is used it is open for both... -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

15:14

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c33 Marius Tomaschewski changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|mt@suse.com |meissner@suse.com --- Comment #33 from Marius Tomaschewski 2013-03-12 15:14:36 UTC --- Back to SuSEfirewall2 maintainer. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

15:24

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c Marius Tomaschewski changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #529333|application/octet-stream |text/plain mime type| | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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27 Mar 27 Mar

15:00

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c37 --- Comment #37 from Bernhard Wiedemann 2013-03-27 16:00:12 CET --- This is an autogenerated message for OBS integration: This bug (783002) was mentioned in https://build.opensuse.org/request/show/161431 Maintenance / https://build.opensuse.org/request/show/161433 Maintenance / https://build.opensuse.org/request/show/161435 Maintenance / -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

15:31

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c Swamp Workflow Management changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard| |obs:running:1513:moderate -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

15:47

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c Swamp Workflow Management changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|obs:running:1513:moderate |obs:running:1513:moderate | |obs:running:1514:moderate -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

16:00

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c39 --- Comment #39 from Bernhard Wiedemann 2013-03-27 17:00:08 CET --- This is an autogenerated message for OBS integration: This bug (783002) was mentioned in https://build.opensuse.org/request/show/161437 Maintenance / https://build.opensuse.org/request/show/161440 Maintenance / -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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2 Apr 2 Apr

16:00

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c40 --- Comment #40 from Bernhard Wiedemann 2013-04-02 18:00:24 CEST --- This is an autogenerated message for OBS integration: This bug (783002) was mentioned in https://build.opensuse.org/request/show/162229 Evergreen:11.2 / dhcp -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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4 Apr 4 Apr

14:30

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c Swamp Workflow Management changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|obs:running:1513:moderate |obs:running:1513:moderate |obs:running:1514:moderate | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

14:30

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c Swamp Workflow Management changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|obs:running:1513:moderate | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

15:04

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c41 --- Comment #41 from Swamp Workflow Management 2013-04-04 15:04:46 UTC --- openSUSE-SU-2013:0619-1: An update that solves one vulnerability and has one errata is now available. Category: security (moderate) Bug References: 783002,811934 CVE References: CVE-2013-2266 Sources used: openSUSE 12.2 (src): dhcp-4.2.4.P2-0.1.12.1 openSUSE 12.1 (src): dhcp-4.2.4.P2-0.6.21.1 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

15:05

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c42 --- Comment #42 from Swamp Workflow Management 2013-04-04 15:05:18 UTC --- openSUSE-SU-2013:0620-1: An update that solves one vulnerability and has one errata is now available. Category: security (moderate) Bug References: 783002,811934 CVE References: CVE-2013-2266 Sources used: openSUSE 12.3 (src): dhcp-4.2.5.P1-0.2.4.1 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

16:05

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c43 --- Comment #43 from Swamp Workflow Management 2013-04-04 16:04:58 UTC --- openSUSE-SU-2013:0625-1: An update that solves one vulnerability and has 6 fixes is now available. Category: security (moderate) Bug References: 783002,784640,788787,791280,791289,794578,811934 CVE References: CVE-2013-2266 Sources used: openSUSE 11.4 (src): dhcp-4.2.4.P2-0.34.1 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

5 Apr 5 Apr

14:00

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c44 --- Comment #44 from Bernhard Wiedemann 2013-04-05 16:00:21 CEST --- This is an autogenerated message for OBS integration: This bug (783002) was mentioned in https://build.opensuse.org/request/show/162839 Evergreen:11.2 / dhcp -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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17 Apr 17 Apr

12:07

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c45 Sebastian Krahmer changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED --- Comment #45 from Sebastian Krahmer 2013-04-17 12:07:54 UTC --- released -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

12:42

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c46 Marcus Meissner changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|FIXED | --- Comment #46 from Marcus Meissner 2013-04-17 12:42:20 UTC --- only a part of it ... the netfilter DHCPv6 connection tracking module we wanted is not yet done :( -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

15:04

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c47 Swamp Workflow Management changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard| |maint:released:sle11-sp2:51 | |914 --- Comment #47 from Swamp Workflow Management 2013-04-17 15:04:27 UTC --- Update released for: dhcp, dhcp-client, dhcp-debuginfo, dhcp-debugsource, dhcp-devel, dhcp-relay, dhcp-server Products: SLE-DEBUGINFO 11-SP2 (i386, ia64, ppc64, s390x, x86_64) SLE-DESKTOP 11-SP2 (i386, x86_64) SLE-SDK 11-SP2 (i386, ia64, ppc64, s390x, x86_64) SLE-SERVER 11-SP2 (i386, ia64, ppc64, s390x, x86_64) SLES4VMWARE 11-SP2 (i386, x86_64) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

31 Jul 31 Jul

20:40

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c48 --- Comment #48 from Freek de Kruijf 2013-07-31 20:40:15 UTC --- I did a native installation of openSUSE 13.1 M3 using the Ruby YaST iso and choose during installation the use of NetworkManager. Immediately after the generation, when KDE is active, and IPv6 is not disabled during the installation, I found that IPv6 is not configured in NM. I needed to use the applet to configure IPv6. After that IPv6 was not activated. I needed to reboot the system to get IPv6 active, however it suffered from the same problem as is presented in this bug report. I needed to open port UDP,546 in the firewall to get a stable connection. I used: FW_SERVICES_ACCEPT_EXT="fe80::/64,udp,546" to open that port. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

25 Sep 25 Sep

12:07

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c Alberto Planas Dominguez changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:released:sle11-sp2:51 |maint:released:sle11-sp2:51 |914 |914 GOLD -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

3 Mar 3 Mar

20:54

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c49 --- Comment #49 from Freek de Kruijf 2014-03-03 20:54:41 UTC --- Created an attachment (id=580786) --> (http://bugzilla.novell.com/attachment.cgi?id=580786) patch file for SuSEfirewall2.sysconfig in package SuSEfirewall2-3.6.305 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

4 Mar 4 Mar

16:41

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c50 --- Comment #50 from Marcus Meissner 2014-03-04 16:41:47 UTC --- As still no upstream DHCPv6 connection tracking has appeared I would probably go with something simialr to this niow. Ludwig, do you have any better ideas? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

23 May 23 May

07:53

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c51 Marius Tomaschewski changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mt@suse.com --- Comment #51 from Marius Tomaschewski 2014-05-23 07:53:20 UTC --- See https://github.com/openSUSE/susefirewall2/pull/1 as an another attempt. A "fe80::/64" is sufficient (comment 49) in most cases, but when the server requests to use unicasts, the client "SHOULD" follow and then you've also messages using global addresses. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

08:02

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c52 --- Comment #52 from Marius Tomaschewski 2014-05-23 08:02:26 UTC --- BTW: There are also DHCPv6 servers, which send responses from dynamic ports and not from 547 [I found some info, that zyxel dhcpv6 server is doing it]. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

08:09

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c53 --- Comment #53 from Marius Tomaschewski 2014-05-23 08:09:39 UTC --- See also https://github.com/openSUSE/susefirewall2/pull/2 which enables dhcpv6-client configuration by default. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

27 May 27 May

15:42

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c55 --- Comment #55 from Marcus Meissner 2014-05-27 15:42:00 UTC --- After some discussion I think we arrived currently at the conclusion to default allow dhcpv6 incoming. We can harden / restrict this, pending on new connection tracking modules or perhaps add config variables. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

16:00

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c56 --- Comment #56 from Bernhard Wiedemann 2014-05-27 18:00:14 CEST --- This is an autogenerated message for OBS integration: This bug (783002) was mentioned in https://build.opensuse.org/request/show/235571 Factory / SuSEfirewall2 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

28 May 28 May

12:58

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c57 Marcus Meissner changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |RESOLVED Resolution| |FIXED --- Comment #57 from Marcus Meissner 2014-05-28 12:58:07 UTC --- also queuing this as a maintenance update for 12.3 and 13.1 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

12 Jun 12 Jun

09:05

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c58 --- Comment #58 from Swamp Workflow Management 2014-06-12 09:05:00 UTC --- openSUSE-RU-2014:0779-1: An update that has one recommended fix can now be installed. Category: recommended (low) Bug References: 783002 CVE References: Sources used: openSUSE 13.1 (src): SuSEfirewall2-3.6.305-2.4.1 openSUSE 12.3 (src): SuSEfirewall2-3.6.302-1.4.1 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

bugzilla_noreply＠novell.com

2 Jul 2 Jul

13:54

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c59 Alexander Bergmann changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tschaefer@t-online.de --- Comment #59 from Alexander Bergmann 2014-07-02 13:54:29 UTC --- *** Bug 885475 has been marked as a duplicate of this bug. *** http://bugzilla.novell.com/show_bug.cgi?id=885475 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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21 Jul 21 Jul

08:08

New subject: [Bug 783002] Standard firewall blocks IPv6 UDP ports 546 and 5353

https://bugzilla.novell.com/show_bug.cgi?id=783002 https://bugzilla.novell.com/show_bug.cgi?id=783002#c60 --- Comment #60 from Swamp Workflow Management 2014-07-21 08:08:46 UTC --- openSUSE-RU-2014:0927-1: An update that has two recommended fixes can now be installed. Category: recommended (low) Bug References: 783002,887850 CVE References: Sources used: openSUSE 12.3 (src): SuSEfirewall2-3.6.302-1.8.1 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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[Bug 783002] New: Standard firewall blocks IPv6 UDP ports 546 and 5353

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