Hello, I managed to establish BGP connection from Strongswan box to AWS VPC. I can ping internal interfaces from AWS to that Linux box, even the traffic passes through that box successfully encrypted/decrypted. The only thing i can't make work right now is the ping from Strongswan box to Amazon VPC using source address other but the vti interface' (169.254.13.208/30). I got noroute (ip -s tunnel show) errors while trying to ping from other address. In other words: everything works except the connection sourced from other address than (169.254.13.208/30)
Could you please help me with this last step ? My configuration is here: https://pastebin.com/96vMa2wj Please take a look.
