Messages

1

23.1 Legacy Series / Re: 23.1.7_3 - IPv6 prefix routed on lo0

« on: May 22, 2023, 10:43:59 am »

@Franco:

Thanks a ton - things work as expected with your patch!

2

23.1 Legacy Series / 23.1.7_3 - IPv6 prefix routed on lo0

« on: May 13, 2023, 05:11:55 pm »

I do get an IPv6 address from my provider (Spectrum residential) on the WAN interface
I do successfully receive a delegated /64 prefix.
My LAN interface does get the expected IP from the delegated /64 assigned to it.

The problem is that the routing entry to the delegated /64 is not via the LAN interface, but via lo0 and has the blackhole flag on it.

route -6 del 2001:db8:dead:beef::/64
route -6 add 2001:db8:dead:beef::/64 -iface vmx1

fixes "everything".

I'm not blaming 23.1.7_3 - I think it started earlier, but it didn't fix it, either.

It may have started when I added a pfSync interface for HA to the VM (running on ESXi), but I can't say for sure.

ipv6 config type is "track interface", for the "lan" interface, the tracked interface is the "wan" interface

The current auto-generated radvd.conf is (and yes, I'm running my own DNS servers for the lan):

# Automatically generated, do not edit
# Generated for DHCPv6 server lan
interface vmx1 {
        AdvSendAdvert on;
        MinRtrAdvInterval 200;
        MaxRtrAdvInterval 600;
        AdvLinkMTU 1500;
        AdvDefaultPreference medium;
        prefix 2001:db8:dead:beef::/64 {
                DeprecatePrefix on;
                AdvOnLink on;
                AdvAutonomous on;
        };
        RDNSS 2001:db8:dead:beef::30 2001:db8:dead:beef::31 {
        };
        DNSSL dragonskeep.org {
        };
};

Any ideas would be appreciated!