Re: [Astlinux-users] Pinging the failover interface

[Lonnie A. <li...@lo...>]

> On Jul 23, 2019, at 4:24 PM, Michael Knill <mic...@ip...> wrote:
> 
> Yes I gathered that was the case. Hmm wonder why it was working for a while.
> So it doesn't seem too difficult to set up policy based routing from this article which sends traffic out the interface it was received.
> https://www.linuxjournal.com/article/7291
> 
> What do you think?

That is a 15 year old article, while it looks mostly correct.

Policy routing seems like overkill for your issue.

Is there a path over WireGuard ? possibly fping the WG interface to see if the path is working ?

Or add a static route ?

Lonnie




> 
> Regards
> Michael Knill
> 
> On 24/7/19, 7:12 am, "Lonnie Abelbeck" <li...@lo...> wrote:
> 
>> My assumption is that the reply will route out the primary interface so it will not work.
> 
>    Exactly.  If there is not a return route to your source IP the packet is lost.
> 
>    Or if over WireGuard, a too narrow AllowedIPs to allow the return packet.
> 
>    Using "ip r" at each end should tell the story.
> 
>    Lonnie
> 
> 
> 
>> On Jul 23, 2019, at 3:58 PM, Michael Knill <mic...@ip...> wrote:
>> 
>> Hi group
>> 
>> Forgive my ignorance but should I be able to ping the failover Astlinux interface if the primary is up? I cant for one of my sites but it used to work for some reason. The link seems fine and I can ping the secondary WAN gateway.
>> My assumption is that the reply will route out the primary interface so it will not work.
>> 
>> Regards
>> Michael Knill
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