The Shrew Soft VPN Client has been tested with Zywall products to ensure interoperability.
The configuration example described below will allow an IPsec VPN client to communicate with a single remote private network.
For more information, please consult your Zywall product documentation. The WAN interface has a static public IP address of 10.1.1.23 which faces the internet.
The LAN interface has a static private IP address of 10.1.2.23 which faces the internal private network.
Changing Exchange to listen directly on the alternate port, bypassing the NAT port forwarding resolves this.
Should I uninstall my (PC Tools) firewall and try for instance AVG?
No automatic configuration is possible at this time due to limitations in the Zywall firmware.
This example assumes you have knowledge of the Zywall web configuration interface.If that doesn't work, then the local IP address of your router was changed from the default during the initial setup.Find out the new IP address and enter that instead.I've been able to narrow this problem down to that device by connecting directly into it and verifying the problem still exists.The issue goes away when I configure my laptop for the fiber connection and go straight in without the network. For example, downloading a 1gb file, I'll get 200mb quickly and then it will pause for a fairly long amount of time (sometimes a couple minutes) before resuming again.I've configured guaranteed bandwidth in the BWM area and still nothing seems to figure this.