From: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
To: hideaki.yoshifuji@miraclelinux.com, ek@google.com, davem@davemloft.net
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: next-20150714 - busted IPv6 source address selection...
Date: Wed, 15 Jul 2015 02:13:00 -0400 [thread overview]
Message-ID: <3528.1436940780@turing-police.cc.vt.edu> (raw)
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next-20150714 w/ one ethernet commit reverted. -0706 w/ same revert works.
"ip addr show" for the wireless says:
5: wlp3s0b1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether bc:85:56:1f:4f:6d brd ff:ff:ff:ff:ff:ff
inet 172.30.42.75/27 brd 172.30.42.95 scope global dynamic wlp3s0b1
valid_lft 80952sec preferred_lft 80952sec
inet6 2601:5c0:c100:9243:449b:a30:2f54:5b/64 scope global temporary dynamic
valid_lft 7181sec preferred_lft 1781sec
inet6 2601:5c0:c100:9243:be85:56ff:fe1f:4f6d/64 scope global mngtmpaddr dynamic
valid_lft 7181sec preferred_lft 1781sec
inet6 fe80::be85:56ff:fe1f:4f6d/64 scope link
valid_lft forever preferred_lft forever
but outbound packets have a bogus source address:
23:01:52.938986 IP6 a835::100:0:200:0.41360 > 2001:500:19::1.domain: 41835% [1au] AAAA? c0.info.afilias-nst.info. (53)
23:05:54.131991 IP6 a835::100:0:200:0 > 2001:468:c80:2105:211:43ff:feda:d769: ICMP6, echo request, seq 56, length 64
Interestingly enough, link-local addresses manage to get it wrong
in another fashion:
23:02:52.806011 IP6 fe80::120d:7fff:fe64:ca0b.60625 > ff02::c.ssdp: UDP, length 411
I suspected this commit mostly because it's the only one that seems to
touch source selection recebntly...
commit 9131f3de24db4dc12199aede7d931e6703e97f3b
Author: YOSHIFUJI Hideaki/å‰è—¤è‹±æ˜Ž <hideaki.yoshifuji@miraclelinux.com>
Date: Fri Jul 10 16:58:31 2015 +0900
ipv6: Do not iterate over all interfaces when finding source address on specific interface.
Reverting this commit make things work again.
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reply other threads:[~2015-07-15 6:13 UTC|newest]
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