Can VPN clients pass through the Diva ADSL 24xx Series modems?
If the VPN client in question can work through a NAT Router then it should work. Many recent offerings from some of the most popular VPN Client suppliers have a UDP-based client which will pass through the firewall built-in to the 24xx series modems. Consult your VPN provider to see if the VPN Client can be configured or supplied with this type of setup. There may be a checkbox within the setup program for the VPN Client which allows it to pass through a NAT Router, for example. The NAT Router built-in to the 24xx series allows only TCP, UDP, GRE, and ICMP protocols through. Any other protocols are silently dropped for security reasons. As an example, the Eicon Networks ‘Safepipe’ VPN Client product works fine through the NAT Firewall on the 24xx series ADSL modems.
