* Stephen Gran:
>> It probably makes sense to disable IPv6 support in Exim on master,
>> independently of my current problem. I'm going to suggest this to
>> postmaster@ once I figured out a good way to implement this.
>
> I doubt that's the problem. This is from my logs:
>
> 2005-08-10 13:33:46 1E2uSY-0005KV-1Q <= [EMAIL PROTECTED] H=lobefin.net
> (www.lobefin.net) [216.158.52.108] U=Debian-exim P=asmtp
> X=TLS-1.0:RSA_AES_128_CBC_SHA:16 A=plain_server:steve S=2386 [EMAIL PROTECTED]
> 2005-08-10 13:33:46 1E2uSY-0005KV-1Q IPv6 socket creation failed: Address
> family not supported by protocol
> 2005-08-10 13:33:46 1E2uSY-0005KV-1Q mail.enyo.de [2001:14b0:202:1::a7]:
> Address family not supported by protocol
> 2005-08-10 13:33:47 1E2uSY-0005KV-1Q => [EMAIL PROTECTED] R=dnslookup
> T=remote_smtp H=bugs.debian.org [140.211.166.43] QT=1s DT=1s
> 2005-08-10 13:33:49 1E2uSY-0005KV-1Q => [EMAIL PROTECTED] R=dnslookup
> T=remote_smtp H=mail.enyo.de [212.9.189.167] QT=3s DT=3s
> 2005-08-10 13:33:49 1E2uSY-0005KV-1Q Completed
>
> I have IPv6 support in kernel and exim,
Are you sure? "IPv6 socket creation failed: Address family not
supported by protocol" suggests something else.
> but no IPv6 connectivity,
master has even got an IPv6 routing table and the kernel assumes it
can reach IPv6 hosts with site-local addresses (fe80::/64):
[EMAIL PROTECTED]:~$ ip -f inet6 route list
fe80::/64 dev eth0 metric 256 mtu 1500 advmss 1440
fe80::/64 dev eth1 metric 256 mtu 1500 advmss 1440
ff00::/8 dev eth0 metric 256 mtu 1500 advmss 1440
ff00::/8 dev eth1 metric 256 mtu 1500 advmss 1440
default dev eth0 proto kernel metric 256 mtu 1500 advmss 1440
default dev eth1 proto kernel metric 256 mtu 1500 advmss 1440
unreachable default dev lo proto none metric -1 error -101
[EMAIL PROTECTED]:~$ ip route get 2001:14b0:202:1::a7
2001:14b0:202:1::a7 via 2001:14b0:202:1::a7 dev eth0 src
fe80::230:6eff:fe05:b968 metric 0
cache mtu 1500 advmss 1440
[EMAIL PROTECTED]:~$
> so it falls back to IPv4 without any noticable delay.
Try "telnet mail.enyo.de 25" on master and your host for a comparison.
master does suffer from a delay when the v6 address is tried, and Exim
does something similar (try v6 first, then v4).
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