Radv proto sending adverts on wrong interface

[Ondrej Zajicek]

On Sun, Mar 12, 2023 at 02:36:50PM +0100, dxld at darkboxed.org wrote:
> I noticed something in tcpdump just now, when using -iany the incorrect RA
> advert shows up as an "M" (multicast) as opposed to "Out" on the correct
> interface. This only happens when sending an RA on enp2s0 not any of the
> stacked vlan interfaces:
> 
>     enp2s0 Out IP6 fe80::debb > ff02::1: ICMP6, router advertisement, length 112
>     enp1s0 M   IP6 fe80::debb > ff02::1: ICMP6, router advertisement, length 112
>     enp2s0.20 Out IP6 fe80::20d:b9ff:fe4e:9055 > ff02::1: ICMP6, router advertisement, length 80
>     enp2s0.40 Out IP6 fe80::debb > ff02::1: ICMP6, router advertisement, length 80
>     enp2s0.10 Out IP6 fe80::20d:b9ff:fe4e:9055 > ff02::1: ICMP6, router advertisement, length 48
> 
> Not sure what to make of this.
> 
> (Note: fe80::debb isn't the link-local address of enp1s0, which seems
> weird)

Which interface has fe80::debb address?

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
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"To err is human -- to blame it on a computer is even more so."