2019/08/07/bgp-route-summary-with-tgw/

[utterances-bot]

BGP route summarization with AWS Transit Gateway - Edge Cloud

Step-by-step guide to summarize BGP routes with AWS Transit Gateway and Cisco IOS

https://www.edge-cloud.net/2019/08/07/bgp-route-summary-with-tgw/

[omotsk]

Hi Chris,

thanks for article , did you try to Modify VPN connection options and set Remote IPv4 network CIDR with aggregate address - in your case this is 172.16.0.0/12 instead ?

Tomas

[chriselsen]

It appears that your comment is targeted towards static Site-to-Site VPN tunnels, which use static routing. The above article refers to VPN tunnels that use dynamic routing via BGP (See the title).

[omotsk]

nope I was asking even with BGP on VPN can you paly around with Remote IPv4 network CIDR...but mean time I've test it out and no, IPSEC will be up but BGP down ...thanks