BGP PROBLEM

RouterOS General
1

Still gettin trouble with multihomed BGP :slight_smile:

Just imagine :

link to one of my ISP`s , two VLAN, two /30 networks for “country” and “international” routers, redistribute connected on mikrotik,
and WITHOUT filter what we see ?
In international bgp peer router not need a filter, networks on other side is just MINE. But in “country” connection still advertise all /30 networks :slight_smile:
What a mess !!!
Sooooo Mikrotik PEOPLE …what to do with your Quagga ? :slight_smile:
How to deal with this situation ?
More information about your THINGS that realized with “/routing bgp” ?
:slight_smile: :slight_smile: :slight_smile: :slight_smile:

2

I’m a little lost at what you are trying to tell us… however, if you don’t use filters don’t expect anything to be filtered by itself. You will advertise and receive all routes from peers without any filters.

Sam

3

i just wrote what you see:

without filters bgp over two vlan connections works very strange

in one of them - is correct by default ! advertised networks is only those i want , in other - my networks + all connected.

i setup filter to test what goin, but still unhappy.
settting to peer , setting generaly to instance - same result.

rules in order

filter chain out

allow mynetworks
deny all other

this logic i provide to outgoing bgp update to peers.
i read documentation on quagga site, and see many features missing. why ?
i just wanna 1:1 explain about missing parts of bgp commands and some features.
and mikrotik quagga is out of date.
when i need bgp features from mikrotik box - i can`t get it
may be peoples with bgp on their boxes is too little problem.

4

suggest filters for outgoin bgp updates ?
may be you can explain, strange problems “one vlan filtered itself, another - can`t be filtered”

and where is missing “network=xxx.xxx.xxx.xxx/xxx” in /routing ???