[Swan] one way ping

[Paul Wouters]

On Tue, 24 Jul 2018, John Crisp wrote:

> Well, I swapped the dummy adaptor for a proper interface with the
> virt_io driver just to be sure. However, ping was working even with the
> dummy adaptor, so logically the networking was actually functioning.
>
> You can ping happily from Libre -> Endian as soon as the tunnel is up.
>
> You cannot ping from Endian -> Libre unless you have pinged the other
> way first.

could this be due to a RELATED iptables rules that only allows replies ?

Paul