Re: ipv4 route with ipv6 local link nexthop ?

Thanks for the patch! I will try :) 


Benoît
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On Wednesday, March 13th, 2024 at 20:07, Marek Zarychta <zarychtam@plan-b.pwste.edu.pl> wrote:

> W dniu 13.03.2024 o 18:59, Marek Zarychta pisze:
> 
> > W dniu 13.03.2024 o 16:31, Benoit Chesneau pisze:
> > 
> > > Hrm I thought it was implemented via
> > > https://reviews.freebsd.org/rG62e1a437f3285e785d9b35a476d36a469a90028d
> > > 
> > > Wasn't it merged ? (also pretty sure I did test it in freebsd 13).
> > 
> > FWIW: it works fine on CURRENT
> > 
> > # ifconfig vlan8 destroy
> > # ifconfig vlan8 create vlandev bge0 vlan 8 up
> > # ifconfig vlan8 inet6 -ifdisabled auto_linklocal
> > # route add -net 10.11.13.0/24 -inet6 fe80::360a:11ff:fe1b:404e%vlan8
> > add net 10.11.13.0: gateway fe80::360a:11ff:fe1b:404e%vlan8 fib 0
> 
> It looks like the fix is in f818559774cb0c1516364c4beca361480fd68b5b .
> Zhenlei, could you please MFC this one[1] ?
> 
> Cherry-picking it to stable/14 makes route fully functional. I have
> tested it between stable/14 with this fix applied and CURRENT.
> 
> Host A:
> 
> # ifconfig lo10 destroy
> # ifconfig lo10 create
> # ifconfig lo10 10.11.13.1/24
> # ifconfig vlan8 destroy
> # ifconfig vlan8 create vlandev bge0 vlan 8 up
> # ifconfig vlan8 inet6 -ifdisabled auto_linklocal
> # route add -net 10.11.12.0/24 -inet6 fe80::6ab5:99ff:febd:8108%vlan8
> add net 10.11.12.0: gateway fe80::6ab5:99ff:febd:8108%vlan8 fib 0
> # ping -c5 -S 10.11.13.1 10.11.12.1
> PING 10.11.12.1 (10.11.12.1) from 10.11.13.1: 56 data bytes
> 64 bytes from 10.11.12.1: icmp_seq=0 ttl=64 time=2002.303 ms
> 64 bytes from 10.11.12.1: icmp_seq=1 ttl=64 time=1000.461 ms
> 64 bytes from 10.11.12.1: icmp_seq=2 ttl=64 time=0.167 ms
> 64 bytes from 10.11.12.1: icmp_seq=3 ttl=64 time=0.222 ms
> 64 bytes from 10.11.12.1: icmp_seq=4 ttl=64 time=0.207 ms
> 
> --- 10.11.12.1 ping statistics ---
> 5 packets transmitted, 5 packets received, 0.0% packet loss
> round-trip min/avg/max/stddev = 0.167/600.672/2002.303/800.763 ms
> 
> Host B:
> 
> # ifconfig lo10 destroy
> # ifconfig lo10 create
> # ifconfig lo10 10.11.12.1/24
> # ifconfig vlan8 destroy
> ifconfig: interface vlan8 does not exist
> # ifconfig vlan8 create vlandev bce0 vlan 8 up
> # ifconfig vlan8 inet6 -ifdisabled auto_linklocal
> # route add -net 10.11.13.0/24 -inet6 fe80::26be:5ff:fe10:c900%vlan8
> add net 10.11.13.0: gateway fe80::26be:5ff:fe10:c900%vlan8 fib 0
> # ping -c5 -S 10.11.12.1 10.11.13.1
> PING 10.11.13.1 (10.11.13.1) from 10.11.12.1: 56 data bytes
> 64 bytes from 10.11.13.1: icmp_seq=0 ttl=64 time=1000.285 ms
> 64 bytes from 10.11.13.1: icmp_seq=1 ttl=64 time=0.141 ms
> 64 bytes from 10.11.13.1: icmp_seq=2 ttl=64 time=0.231 ms
> 64 bytes from 10.11.13.1: icmp_seq=3 ttl=64 time=0.235 ms
> 64 bytes from 10.11.13.1: icmp_seq=4 ttl=64 time=0.174 ms
> 
> --- 10.11.13.1 ping statistics ---
> 5 packets transmitted, 5 packets received, 0.0% packet loss
> round-trip min/avg/max/stddev = 0.141/200.213/1000.285/400.036 ms
> 
> 1.
> https://cgit.freebsd.org/src/commit/?id=f818559774cb0c1516364c4beca361480fd68b5b
> 
> 
> Cheers
> 
> --
> Marek Zarychta