[Babel-users] Babel MAC auth fails due to packet reordering

Juliusz Chroboczek jch at irif.fr
Wed May 4 11:20:57 BST 2022


> I'm attaching a filtered down pcap from the receiving side showing the
> problem. Wireshark filter: (babel && ipv6.src == fe80::1) || icmpv6. The
> sending side is running babeld the receiving side bird2 if that matters.

Interesting, thanks.

1. Are you running with the "unicast" option set in your config file?

2. Is the link badly congested?  Your dump indicates that a packet got
   delayed by no less than 200ms (!).

Dave, Toke, please have a look at packets #10 and #11 in Daniel's dump,
and let me know if you're as puzzled as I am.

-- Juliusz



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