Comments/Thoughts welcome- Redistributing- known(static routes) via bgp

[roliveira11]

Hi All! I was hoping to get some thoughts around a projects I'm undergoing.

We have a pair of Nexus 7706's that have seven static routes to our Parent company's LAN networks ( via a 10G point-to-point connection using a /29 prefix-simple stuff).. Attached to the 7706's are a pair of ISR 4451's, acting as the DMVPN hubs (phase 3).. the 7706's and the ISR4451's are ibgp peers...I'm looking for thoughts on how to best advertise those seven routes to our DMVPN spoke routers at each branch office ( the ISR4451 HUBS are ebgp peers with all of the ISR4331 Spokes at each site).. that's one thought.. the curveball here- I need to NAT the branch locations source IP's as it will conflict with certain prefixes being used at our parent company.. I think I can do that on the ISR's?? Too bad the 7k's can't do NAT ;)

Any comments would be greatly appreciated!

Thanks

Rob

[cdusio]

You're describing two problems. The first problem is you have statics you need to advertise to the 4451's. You can do that with network statements or redistribute static routes into bgp with a route-map. You could also theoretically add the statics to the 4451's pointing to an hsrp address on the 7k's but that's more work. 

Second issue, yes you can nat on the remote sides, you then will have the problem of how to advertise those routes back to the head ends since they are not actual networks that live on the remotes. 

Look into creating null routes or something then you can advertise them back to the bgp head ends.

[roliveira11]

Hi! Thank you for the response! I think I'll go with adding the network statements into BGP

Regarding the second challenge I mentioned, Wouldn't it be easier to NAT on the ISR DMVPN Hubs? ( 4451's)