[Babel-users] ANNOUNCE: babeld-1.6.0

[Julien Muchembled]

Le 04/14/15 14:21, Juliusz Chroboczek a écrit :
> For more information about source-specific routing, please see
> 
>   Matthieu Boutier and Juliusz Chroboczek.
>   Source-specific routing.
>   To appear in Proc. IFIP Networking 2015.
>   http://arxiv.org/pdf/1403.0445

Interesting. I didn't read completely but it makes all the code in disambiguation.c less obscure :)

> Unfortunately, this support is only functional since Linux 3.11
> (source-specific routes were treated as unreachable in earlier versions)

Really ?
During my experiments, source-specific routes work with much older kernels:

# uname -a
Linux debian 2.6.32-5-amd64 #1 SMP Tue May 13 16:34:35 UTC 2014 x86_64 GNU/Linux

And 3 nodes: A --- B --- C

A# ip -6 a
20: NETNSif-03e8003: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000
    inet6 2001:67c:1254::1/64 scope global 
       valid_lft forever preferred_lft forever
87: re6stnet1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 100
    inet6 fe80::206b:f1ff:fe9e:73a9/64 scope link 
       valid_lft forever preferred_lft forever

B# ip -6 r
default from 2001:db8:42::/48 via fe80::206b:f1ff:fe9e:73a9 dev re6stnet-tcp  proto 42  metric 1024  mtu 1500 advmss 1440 hoplimit 4294967295
unreachable 2001:db8:42:3::/64 dev lo  proto kernel  metric 256  error -101 mtu 16436 advmss 16376 hoplimit 4294967295
default via fe80::dead dev NETNSif-03e8016  metric 1024  mtu 1500 advmss 1440 hoplimit 4294967295

C# traceroute6 -n 2001:67c:1254::1
traceroute to 2001:67c:1254::1 (2001:67c:1254::1), 30 hops max, 80 byte packets
 1  2001:db8:42:3::1  0.367 ms  0.229 ms  0.186 ms
 2  2001:67c:1254::1  0.391 ms  0.350 ms  0.329 ms

B# ping6 -c 1 2001:67c:1254::1
PING 2001:67c:1254::1(2001:67c:1254::1) 56 data bytes
From 2001:db8:42:3::1 icmp_seq=1 Destination unreachable: Address unreachable

--- 2001:67c:1254::1 ping statistics ---
1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms

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