[ipv6hackers] IPv6 source address selection on Linux
ssmeenk at freshdot.net
Mon Jul 23 13:14:31 CEST 2012
Quoting Jim Small (jim.small at cdw.com):
> Sorry this isn't exactly what you wanted but hope it helps,
Thanks for your elaborate post. Karl Auer <kauer at biplane.com.au> also
sent me in the right direction (offlist). Aparently if you add the two
matching source and destination addresses with the same 'label' (ip
addrlabel) the system selects the matching pair.
It appears to work, as i see traffic leaving the system from the
ULA-address, but somehow the routing borks later on in the path.
I haven't had the time to look into that yet.
Quoting Karl Auer:
| I got it working!
| When I manually added the two new rules using the ip program, it
| worked fine.
| sudo ip addrlabel add prefix $SRCADDR/128 label 99
| sudo ip addrlabel add prefix $DSTADDR/128 label 99
This can also be achieved by adding the labels to /etc/gai.conf and
restarting your network (ifdown/ifup) or just plain rebooting.
Thanks Karl, Jim and all other who put effort in this mistery!!
More to follow on this if i have the time.
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