This one time, at band camp, Florian Weimer said: > * Stephen Gran: > > > 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]:~$ ip -f inet6 route list
fe80::/64 dev eth0 metric 256 mtu 1500 advmss 1440 hoplimit 64
ff00::/8 dev eth0 metric 256 mtu 1500 advmss 1440 hoplimit 1
default dev eth0 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 64
unreachable default dev lo proto none metric -1 error -101 hoplimit 255
[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::20d:93ff:fe77:4a6e metric 0
cache mtu 1500 advmss 1440 hoplimit 64
> > 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).
[EMAIL PROTECTED]:~$ telnet mail.enyo.de 25
Trying 2001:14b0:202:1::a7...
Trying 212.9.189.167...
Connected to mail.enyo.de.
Escape character is '^]'.
220 mail.enyo.de ESMTP
[EMAIL PROTECTED]:~$ telnet mail.enyo.de 25
Trying 2001:14b0:202:1::a7...
Trying 212.9.189.167...
Connected to mail.enyo.de.
Escape character is '^]'.
220 mail.enyo.de ESMTP
No noticable time difference between the two, either. So, I don't
think this is the real problem. I may be wrong, of course :)
--
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| ,''`. Stephen Gran |
| : :' : [EMAIL PROTECTED] |
| `. `' Debian user, admin, and developer |
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