04-13-2018 08:49 AM - edited 03-08-2019 02:38 PM
Hello All,
Getting a bit stuck on if this will work..
I have a network on a /24 public network (site B), i have removed a /26 (.64 to .128) and assigned this public range at another site (site B).
Okay the tricky bit..i have two WANs ISP on /30 from site A to site B via my two perimeter routers , with VRRP WAN tracking. The ISP manages both WANs and sends me a default gateway via BGP. What is the best way to get to the /26 at site B, ISP cannot advertise a /26 for me at site A (as its not big enough mask). But they will advertise /26 via BGP at site B.
Looking to setup a VPN (on firewall before the perimeter routers) between sites how do i reach the /26?? via a static route on the firewall via VRRP on the perimeter router and static route on the perimeter via /30s WANs? Will i black hole any routes don't think so as i have VRRP WAN interface tracking but not sure if BGP peer fails does the WAN VRRP tracking fail (not a link failure)?
Thanks for any info
Solved! Go to Solution.
04-13-2018 01:02 PM
Hi,
I am not sure if that is going to work as .64 to .128 is in the middle of a /24 and it already being advertised from site-A.
HTH
04-13-2018 01:02 PM
Hi,
I am not sure if that is going to work as .64 to .128 is in the middle of a /24 and it already being advertised from site-A.
HTH
04-16-2018 03:53 AM
Hi Reza,
Logically advertising /24 at site A and advertising /26 at site B. In theory this should work ISP BGP cloud advertising a specific /26 pointing to site B less specific (/24) to site A.
Not seeing alternative options to get around this?
Thanks for any info
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide