nftables rule where IPv6 source and destination addr are the same?

Hi,

I am looking for a way to create a rule triggered when the saddr and the daddr are link-local the same, e.g.

ip6 saddr fe80::/10 == ip6 daddr fe80::/10 accept

What is the way to do this?

XY: https://www.rfc-editor.org/rfc/rfc4861#section-4.5

I cannot think of any way to do this. In particular, "@nh,64,128 == @nh,192,128" is not permitted.

Kerin Millar