eibgrad
Splendid
- Feb 16, 2010
- 3,373
- 2
- 21,465
I assume what you're asking if what does "vpn pass thru" mean/do.
Normally your NAT router inspects network packets and alters them so the single public IP (e.g., 209.167.5.2) provided by your ISP can be mapped to your local IP(s) (e.g., 192.168.0.x). But when using a VPN connection, that's a problem. The packets are SECURED and any attempt to alter those packets will break the VPN connection (the VPN will consider it a security breach). So in order to avoid that problem, a router that supports VPN pass thru allows a VPN client to pass its traffic UNALTERED through the router.
Normally your NAT router inspects network packets and alters them so the single public IP (e.g., 209.167.5.2) provided by your ISP can be mapped to your local IP(s) (e.g., 192.168.0.x). But when using a VPN connection, that's a problem. The packets are SECURED and any attempt to alter those packets will break the VPN connection (the VPN will consider it a security breach). So in order to avoid that problem, a router that supports VPN pass thru allows a VPN client to pass its traffic UNALTERED through the router.
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