[Bug 851953] New: Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges - openSUSE Bugs - openSUSE Mailing Lists

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[Bug 851953] New: Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges

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bugzilla_noreply＠novell.com

22 Nov 2013 22 Nov '13

22:52

https://bugzilla.novell.com/show_bug.cgi?id=851953 https://bugzilla.novell.com/show_bug.cgi?id=851953#c0 Summary: Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges Classification: openSUSE Product: openSUSE 13.1 Version: Final Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Network AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: jfunk@funktronics.ca QAContact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.66 Safari/537.36 SUSE/30.0.1599.66 I upgraded a pair of 12.3 systems with bridge configurations to 13.1. However, it seems that IPv6 gets broken on boot because autoconfiguration is occurring on the bridge ports. For example, say I have a br0 bridge containing eth0 as a port. I have ifcfg-eth0 set up like this: BOOTPROTO='none' STARTMODE='auto' ETHTOOL_OPTIONS="-K eth1 rx off tx off" And I have ifcfg-br0 set up like this: IPADDR='10.x.x.x/24' USERCONTROL='no' BOOTPROTO='static' BRIDGE='yes' BRIDGE_FORWARDDELAY='0' BRIDGE_PORTS='eth0' BRIDGE_STP='off' STARTMODE='auto' IPADDR_IPv6='2001:x:x:x::x/64' When networking comes up, I end up with local IPv6 routes on eth0 and br0, which totally breaks IPv6: 2001:x:x:x::/64 dev eth0 proto kernel metric 256 expires 2591382sec 2001:x:x:x::/64 dev br0 proto kernel metric 256 There is also an automatic IPv6 address on eth0 in the local range, along with an automatic ipv4 address. I have to remove the route and address from eth0 in order to get IPv6 working after boot, which is very annoying as I have to ssh -4 into it and fix it after every boot. Reproducible: Always -- 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

25 Nov 25 Nov

06:33

New subject: [Bug 851953] Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges

https://bugzilla.novell.com/show_bug.cgi?id=851953 https://bugzilla.novell.com/show_bug.cgi?id=851953#c zhang jiajun changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jzhang@suse.com AssignedTo|bnc-team-screening@forge.pr |mvidner@suse.com |ovo.novell.com | -- 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

1 Dec 1 Dec

00:37

New subject: [Bug 851953] Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges

https://bugzilla.novell.com/show_bug.cgi?id=851953 https://bugzilla.novell.com/show_bug.cgi?id=851953#c1 flo gleixner changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |gleixner@lrz.de --- Comment #1 from flo gleixner 2013-12-01 00:37:10 UTC --- I also encountered the problem. A workaround is to add deny-interfaces=eth0 at the [server] section of /etc/avahi/avahi-daemon.conf -- 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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10:57

New subject: [Bug 851953] Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges

https://bugzilla.novell.com/show_bug.cgi?id=851953 https://bugzilla.novell.com/show_bug.cgi?id=851953#c2 --- Comment #2 from flo gleixner 2013-12-01 10:57:42 UTC --- Sorry, this workaround did not fix the 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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14:29

New subject: [Bug 851953] Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges

https://bugzilla.novell.com/show_bug.cgi?id=851953 https://bugzilla.novell.com/show_bug.cgi?id=851953#c3 --- Comment #3 from flo gleixner 2013-12-01 14:29:00 UTC --- Did some more research: If i enable Suse Firewall, all works as expected. If i disable it, eth0 gets global scoped IPv6 addresses and the route to eth0 which breaks network. Activating/deactivating firewall swaps also the initialization order of br0 and eth0. I will attach a logfile with and without 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.

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14:44

New subject: [Bug 851953] Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges

https://bugzilla.novell.com/show_bug.cgi?id=851953 https://bugzilla.novell.com/show_bug.cgi?id=851953#c4 --- Comment #4 from flo gleixner 2013-12-01 14:44:11 UTC --- Created an attachment (id=569740) --> (http://bugzilla.novell.com/attachment.cgi?id=569740) Log and netconfig with and without 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.

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bugzilla_noreply＠novell.com

2 Dec 2 Dec

16:20

New subject: [Bug 851953] Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges

https://bugzilla.novell.com/show_bug.cgi?id=851953 https://bugzilla.novell.com/show_bug.cgi?id=851953#c Martin Vidner changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|mvidner@suse.com |mt@suse.com -- 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 Dec 5 Dec

10:18

New subject: [Bug 851953] Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges

https://bugzilla.novell.com/show_bug.cgi?id=851953 https://bugzilla.novell.com/show_bug.cgi?id=851953#c5 Marius Tomaschewski changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|mt@suse.com |mfilka@suse.com --- Comment #5 from Marius Tomaschewski 2013-12-05 10:18:16 UTC --- There are two issues overlapping each other: a) avahi if-up.d start hooks seem to start avahi-autoipd on every interface unconditionally This causes diverse timeouts and that there is a quite big time window between "ip link set up eth0 && brctl addif br0 eth0" and the kernel starts autoip. b) configuration is incomplete, use: echo "net.ipv6.conf.nic0.autoconf = 0" >> /etc/sysconfig/network/ifsysctl or even better: echo "net.ipv6.conf.eth0.disable_ipv6 = 1" >> /etc/sysconfig/network/ifsysctl for all bridge/bonding ports => yast2. -- 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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10:21

New subject: [Bug 851953] Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges

https://bugzilla.novell.com/show_bug.cgi?id=851953 https://bugzilla.novell.com/show_bug.cgi?id=851953#c6 Marius Tomaschewski changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mt@suse.com --- Comment #6 from Marius Tomaschewski 2013-12-05 10:21:38 UTC --- Apropos a) Try a "rpm -e avahi" and you'll see that the problem is away. -- 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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10:31

New subject: [Bug 851953] Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges

https://bugzilla.novell.com/show_bug.cgi?id=851953 https://bugzilla.novell.com/show_bug.cgi?id=851953#c7 --- Comment #7 from Marius Tomaschewski 2013-12-05 10:31:45 UTC --- Apropos b) On the IPv4 side, there are multiple switches enabling/disabling several stages of autoconf: BOOTPROTO="autoip" -- more exactly "+autoup": autoip dhcp+autoip may be used for a IPv4 zeroconf setup or as fall back to autoip if dhcp fails. Note: this has nothing to do with the avahi-autoipd hook which seems to be installed by default on 13.1 and _conflicts_/breaks the above. ## Type: yesno ## Default: no # # This variable is used to disable the Zero Configuration Networking # (zeroconf) route (169.254.0.0) on local interfaces, which match # the pattern in LINKLOCAL_INTERFACES variable. # NOZEROCONF="no" ## Type: string ## Default: "eth*[0-9]|tr*[0-9]|wlan[0-9]|ath[0-9]" # # When is not disabled using the NOZEROCONF variable, automatically # add a IPv4 linklocal route to the matching interfaces. # This string is used in a bash "case" statement, so it may contain # '*', '[', ']' and '|' meta-characters. # LINKLOCAL_INTERFACES="eth*[0-9]|tr*[0-9]|wlan[0-9]|ath[0-9]" So basically, IPv4 autoip route thingy is effectively disabled on 13.1, because the LINKLOCAL_INTERFACES does not match in most cases. Michal: It makes sense to explicitly set NOZEROCONF="yes" in any ifcfg-file, except the file is also using "autoip" in BOOTPROTO. The NOZEROCONF flag will be changed to "yes" as default. See also: https://fate.suse.com/314482 -- 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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10:40

New subject: [Bug 851953] Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges

https://bugzilla.novell.com/show_bug.cgi?id=851953 https://bugzilla.novell.com/show_bug.cgi?id=851953#c Marius Tomaschewski changed: What |Removed |Added ---------------------------------------------------------------------------- Blocks| |853845 -- 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 Feb 27 Feb

15:10

New subject: [Bug 851953] Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges

https://bugzilla.novell.com/show_bug.cgi?id=851953 https://bugzilla.novell.com/show_bug.cgi?id=851953#c8 Marius Tomaschewski changed: What |Removed |Added ---------------------------------------------------------------------------- Blocks|853845 | Depends on| |853845 --- Comment #8 from Marius Tomaschewski 2014-02-27 15:10:47 UTC --- Set Blocks/Depends on another way around. avahi-autoipd assigns the addresses by starting unconditionally. -- 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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19:00

New subject: [Bug 851953] Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges

https://bugzilla.novell.com/show_bug.cgi?id=851953 https://bugzilla.novell.com/show_bug.cgi?id=851953#c9 --- Comment #9 from Bernhard Wiedemann 2014-02-27 20:00:12 CET --- This is an autogenerated message for OBS integration: This bug (851953) was mentioned in https://build.opensuse.org/request/show/224144 13.1 / avahi -- 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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10 Mar 10 Mar

10:04

New subject: [Bug 851953] Network start insists on assigning addresses to bridge ports, breaking IPv6 on bridges

https://bugzilla.novell.com/show_bug.cgi?id=851953 https://bugzilla.novell.com/show_bug.cgi?id=851953#c10 --- Comment #10 from Swamp Workflow Management 2014-03-10 10:04:22 UTC --- openSUSE-RU-2014:0349-1: An update that has two recommended fixes can now be installed. Category: recommended (low) Bug References: 851953,853845 CVE References: Sources used: openSUSE 13.1 (src): avahi-0.6.31-16.6.1, avahi-glib2-0.6.31-16.6.1, avahi-mono-0.6.31-16.6.1, avahi-qt4-0.6.31-16.6.1 -- 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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