isisd: IS-IS over tunnel (GRE, GENEVE) #12979
Merged
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This patch introduces a new BFP filter in
isis_pfpacket.c
, which in addition to IS-IS over LLC also permits IS-IS over Ethertype0x00fe
. This makes IS-IS work over tunnels such as GRE.Tested IS-IS over Ethernet, IS-IS over GRE and IS-IS over GENEVE (GENEVE requires upstreaming a kernel patch).
Resolves #2330 (may need setting
isis network point-to-point
).