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Issue with OpenVPN acting as client + server

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linux-howto

http://serverfault.com – I have 3 Amazon VPCs (Dev - 10.100.0.0/16 , QA - 10.101.0.0/16, Prod - 10.104.0.0/16). Each of these VPNs has an OpenVPN server. They are dolling out client IPs as follows: Dev - 10.100.0.0/16 - Tunnel 10.7.0.0/24 QA - 10.101.0.0/16 - Tunnel 10.8.0.0/24 Prod - 10.104.0.0/16 - Tunnel 10.9.0.0/24 I have an Ubuntu LTS 12.04 server running onsite and I've established 3 client connections (one to each VPC). I'm able to ssh into this Ubuntu box and get around all three subnets (10.100 , 10.101, 10.104) without any issues whatsoever. Here's my client config [DEV / 10.100.x / tun 10.7.0.x]: cl (HowTos)