Re: kern/59664: kernel keeps spewing can't handle af18

["Christos Zoulas via gnats" <gnats-admin%NetBSD.org@localhost>]

The following reply was made to PR kern/59664; it has been noted by GNATS.

From: Christos Zoulas <christos%zoulas.com@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
 netbsd-bugs%netbsd.org@localhost
Subject: Re: kern/59664: kernel keeps spewing can't handle af18
Date: Tue, 23 Sep 2025 14:51:04 -0400

 It does not have to do with npf I think. It comes from ip_forward.c:
 
          if (rt->rt_flags & RTF_GATEWAY)
                  dst = (struct sockaddr_in6 *)rt->rt_gateway;
 
 and the first entry in the following which has the Gateway bit set:
 
 $ netstat -rn -f inet6 | grep link#2
 2603:7000:2600:320a::/64                link#2                         
 UGC         -        -  33624  wm1
 2603:7000:2600:320a::1                  link#2                         
 UHl         -        -      -  lo0
 fe80::%wm1/64                           link#2                         
 UC          -        -      -  wm1
 fe80::b696:91ff:fe41:dc87               link#2                         
 UHl         -        -      -  lo0
 ff01:2::/32                             link#2                         
 UC          -        -      -  wm1
 ff02::%wm1/32                           link#2                         
 UC          -        -      -  wm1
 
 This is a delegated /64 from Spectrum.
 
 christos