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Can a LAN-to-LAN IPSec VPN Tunnel Work over 3G Network
Posted by on 25 January 2012 05:04 PM

Telstra NextG wireless network does not use public IP addresses and consequently the IPSec tunnel cannot be easily setup. You will need to request a static public IP address from Telstra.

Bigpond 3G connections do use public IP address so the IPSec VPN tunnel can be easily setup. . However, the 3G connection is allocated an IP number dynamically so you will need to use Dynamic DNS to specify the connection if the 3G connection is the Dial-In connection.

We have tested the VPN connection using the Bigpond BP3 USB modem connected to a 2910 router. We used IPSec with medium (AH) and High (ESP) DES without authentication. The 3G connection was set up as the remote host dialling into the VPN server.

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