AWS S2S VPN - Route Based Network CIDR Blocks

0

We are setting up a S2S VPN between AWS and Cisco FTD that will be VTI based. What should the Remote and Local IPv4 network CIDR's be set to? Is it recommended that they be set to 0.0.0.0/0 in order to enable/ensure the BPG peering works?

질문됨 2달 전296회 조회
1개 답변
0

Hello.

Remote and Local IPv4 network CIDR's

What you want to know is the CIDR set on the screen below in the AWS management console?
a

If so, please set the on-premises CIDR for "Local IPv4 network CIDR".
There is no problem if you set the AWS VPC CIDR for "Remote IPv4 network CIDR".
This is a CIDR setting that allows the VPN tunnel to pass through, so if you set it to 0.0.0.0/0, all communications will be able to pass through.
If there is no need to limit it, I think you can set it to 0.0.0.0/0.

profile picture
전문가
답변함 2달 전
  • Are there security risks to setting it to 0.0.0.0/0? Because when we set the Local and Remote IPv4 network CIDRs to our correct CIDRs, the tunnels didn't work (because I think the BGP peering traffic wasn't captured)

로그인하지 않았습니다. 로그인해야 답변을 게시할 수 있습니다.

좋은 답변은 질문에 명확하게 답하고 건설적인 피드백을 제공하며 질문자의 전문적인 성장을 장려합니다.

질문 답변하기에 대한 가이드라인

관련 콘텐츠