https://bugzilla.novell.com/show_bug.cgi?id=656916 https://bugzilla.novell.com/show_bug.cgi?id=656916#c wei wang <wewang@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |wewang@novell.com AssignedTo|bnc-team-screening@forge.pr |mzugec@novell.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.

https://bugzilla.novell.com/show_bug.cgi?id=656916 https://bugzilla.novell.com/show_bug.cgi?id=656916#c2 Michal Zugec <mzugec@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|wadei@ntlworld.com | --- Comment #2 from Michal Zugec <mzugec@novell.com> 2010-12-03 08:31:11 UTC --- Here is the output from "ip a" after disabling IPv6 in YaST2, in 2 situations: A: Default "out-of-the-box" /boot/grub/menu.lst DNS issues both A and AAAA request. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 brd 127.255.255.255 scope host lo inet 127.0.0.2/8 brd 127.255.255.255 scope host secondary lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1492 qdisc pfifo_fast state UP qlen 1000 link/ether 00:07:e9:6b:40:96 brd ff:ff:ff:ff:ff:ff inet 192.168.2.6/24 brd 192.168.2.225 scope global eth0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ B: "ipv6.disable=1" added to list of kernel parameters in /boot/grub/menu.lst DNS issues A request, but not AAAA request. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 brd 127.255.255.255 scope host lo inet 127.0.0.2/8 brd 127.255.255.255 scope host secondary lo 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1492 qdisc pfifo_fast state UP qlen 1000 link/ether 00:07:e9:6b:40:96 brd ff:ff:ff:ff:ff:ff inet 192.168.2.6/24 brd 192.168.2.225 scope global eth0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In other words, when IPv6 is *really* disabled (case B above), the following lines are missing: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ inet6 ::1/128 scope host valid_lft forever preferred_lft forever ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=656916 https://bugzilla.novell.com/show_bug.cgi?id=656916#c4 Marius Tomaschewski <mt@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |DUPLICATE --- Comment #4 from Marius Tomaschewski <mt@novell.com> 2010-12-03 10:52:44 UTC --- (In reply to comment #3)

This is IMHO dhcp-client issue ...

No, it isn't a dhcp-client issue ;-) It is basically a duplicate of bug #632530 -- a difference in the kernel behavior between "ipv6.disable=1" and "disable_ipv6=1". (In reply to comment #0)

Actual Results: DNS client sends AAAA request even after IPv6 was allegedly disabled.

Expected Results: DNS A only.

No. The query is not the problem. A getaddrinfo with hints.ai_family==AF_UNSPEC is fine and queries both, A and AAAA records, whether IPv6 is enabled or not. You can ask for AAAA records over IPv4. $ host -t AAAA www.kame.net 203.178.141.194 Using domain server: Name: 203.178.141.194 Address: 203.178.141.194#53 Aliases: www.kame.net is an alias for orange.kame.net. orange.kame.net has IPv6 address 2001:200:dff:fff1:216:3eff:feb1:44d7 I'll attach some test results to bug #632530, that was reported earlier and provides concrete symptoms. Please continue there. *** This bug has been marked as a duplicate of bug 632530 *** http://bugzilla.novell.com/show_bug.cgi?id=632530 -- 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.