Community discussions

MikroTik App
 
AlexM2020
newbie
Topic Author
Posts: 29
Joined: Sat Jan 04, 2020 12:19 pm

BGP FIRT

Tue Jan 12, 2021 4:16 pm

Good evening,
I'm pretty new to the world of BGP routing. In my configuration I have a single ISP that passes the FIRT to me through a BGP instance. Everything ok but I saw that the mikrotik CCR always has a 100% CPU. Since I have a single ISP I wanted to know how I could block the automatic acquisition of all routes and be able to replace them by a single general static route 0.0.0.0/0.
Any information would be welcome. thanks
 
User avatar
CZFan
Forum Guru
Forum Guru
Posts: 2098
Joined: Sun Oct 09, 2016 8:25 pm
Location: South Africa, Krugersdorp (Home town of Brad Binder)
Contact:

Re: BGP FIRT

Tue Jan 12, 2021 11:20 pm

You need to ask upstream provider to only annoince default route to you, then in routing filters, only accept default prefix and discard all others
 
User avatar
StubArea51
Trainer
Trainer
Posts: 1739
Joined: Fri Aug 10, 2012 6:46 am
Location: stubarea51.net
Contact:

Re: BGP FIRT  [SOLVED]

Wed Jan 13, 2021 4:31 pm

I would ask your provider to send you a full table + default so that you can discard the full table. However, if you decide to leak specific routes or allow the full table in the future, it doesn't require a change by the upstream provider.

Who is online

Users browsing this forum: No registered users and 14 guests