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I have 2 VPCs, one in US, one in EU, and each of them have 1 VM. (IN US there is the Customer GW (set to irish IP) and Virtual Private GW).

I have succesfully connected with openswan from Irish VM, I can ping Ireland from the US (10.0.0.1) I cannot ping US from Ireland. Why?

Do I need to set up another VPN connection on US VM to have it fully bidirectional? I followed tutorial: https://www.scalefactory.com/blog/2020/12/14/how-to-set-up-a-site-to-site-vpn-connection/

Wojtas.Zet
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  • A VPN is bidirectional. Check your security groups. You haven't given us any information to help you further. If you want more help you will need to post a lot of information - VPN configurations, security groups, NACLs, network diagram, etc. – Tim May 23 '21 at 18:17
  • It works fine now in 2 directions. Problem was restrictive AWS security groups (access lists). After allowing "any any" traffic problem is gone. Thanks! – Wojtas.Zet May 24 '21 at 10:17

1 Answers1

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Problem was restrictive AWS security groups (access lists). After allowing "any any" traffic problem is gone.

Wojtas.Zet
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