On 6/Apr/20 12:00, Saku Ytti wrote:
Aah found it, it does do Cisco hack.
https://github.com/FRRouting/frr/blob/58980443821edf95719984e01f31720bd1dc7f...
But as long as you don't pad, your PDU shouldn't exceed 1500B.
Good man, you gave me an idea. Ran through the documentation and found out how to deal with Hello Padding in FRR: interface em0 ip router isis 1 ipv6 router isis 1 no isis hello padding Looks like IS-IS now initializes: 2020/04/06 10:09:21 ISIS: Opened BPF device /dev/bpf0 2020/04/06 10:09:21 ISIS: BPF buffer len = 4096 2020/04/06 10:09:21 ISIS: failed to set BPF buffer len (4096 to 9000) 2020/04/06 10:09:21 ISIS: circuit already connected 2020/04/06 10:09:21 ISIS: circuit already connected 2020/04/06 10:09:21 ISIS: circuit already connected Let me continue with the configuration and report back. Mark.