Dodgy AS327933 ...?

Fri Aug 11 09:33:54 UTC 2023

On 8/11/23 11:26, Nick Hilliard wrote:

>
> If your asn is 327933, then:
>
> add chain=foo prefix=192.0.2.0/24 action=accept set-bgp-prepend=2
>
> ... will produce: "327933 327933", and:
>
> add chain=foo prefix=192.0.2.0/24 action=accept set-bgp-prepend-path=2
>
> ... will produce: "327933 2".
>
> Routeros does command completion on the CLI, so this is finger-slip 
> territory, and the two commands are visually similarly enough to each 
> other that it would be easy not to notice.

It is not terribly clever of Mikrotik to have two commands that do 
different things be that close in syntax.

That said, why are we giving the routers the ability to manually 
generate AS_PATH's? On any router OS, this is simply asking for it.

Mark.