[Bug 286322] IPv6 doesn't work across different FIBs (epair)

From: <bugzilla-noreply_at_freebsd.org>
Date: Sat, 31 May 2025 01:12:18 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=286322

--- Comment #12 from Paige Thompson <paige@paige.bio> ---
nevermind, that actually doesn't work my theory is because that is going to the
same FIB "lo0" and it will have to be a static NDP entry 

ifconfig epair9a inet6 2001:470:b56f::2 prefixlen 64 
ifconfig epair9b inet6 2001:470:b56f::1 prefixlen 64 fib 48

➜  sq ndp -a          
Neighbor                             Linklayer Address  Netif Expire    S Flags
2001:470:b56f::2                     02:a8:b6:06:0f:0a epair9a permanent R 
fe80::a8:b6ff:fe06:f0a%epair9a       02:a8:b6:06:0f:0a epair9a permanent R 
2001:470:b56f::1                     02:a8:b6:06:0f:0b epair9b permanent R 
fe80::a8:b6ff:fe06:f0b%epair9b       02:a8:b6:06:0f:0b epair9b permanent R 


➜  sq ping6 fe80::a8:b6ff:fe06:f0b%epair9a
PING(56=40+8+8 bytes) fe80::a8:b6ff:fe06:f0a%epair9a -->
fe80::a8:b6ff:fe06:f0b%epair9a
16 bytes from fe80::a8:b6ff:fe06:f0b%epair9a, icmp_seq=0 hlim=64 time=0.335 ms

yeah I dunno I'm gonna have to use VXLAN or something as a substitute for epair
:/

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