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Need A bit of Help with BGP

4jjohnson
Level 1
Level 1

We are running BGP using two routers and two ISP's.  The secondary ISP circuit has went down.  The secondary IP traffic is being correctly routed over BGP to the Primary Router.  For some reason I cannot get the secondary ISP IP block traffic to pass through the router to the devices on the LAN side.  However, from within the Primary, I can indeed ping any of the Secondary IP's.  I know it is a routing issue, but I just can't figure out what I am doing wrong as the config looks correct.

1 Accepted Solution

Accepted Solutions

Indeed the issue was the secondary route was not being advertised. It looks like a reload of the config a month ago had a line missing.
Everything is working now.

Thanks Much

View solution in original post

3 Replies 3

Francesco Molino
VIP Alumni
VIP Alumni

Hi 

 

I guess you're pinging your secondary isp from your router getting a bgp peering right?

 

You want this subnet learned redistributed in your lan? 

What routing protocol are you using on the LAN side? Can you please share your configs?

While sharing the config, can you tell which are subnets not learned on lan side.


Thanks
Francesco
PS: Please don't forget to rate and select as validated answer if this answered your question

Indeed the issue was the secondary route was not being advertised. It looks like a reload of the config a month ago had a line missing.
Everything is working now.

Thanks Much

Glad it works!

Thanks
Francesco
PS: Please don't forget to rate and select as validated answer if this answered your question