VPN configuration question
Not sure if this is the right forum so...I have a network running windows 2003 server. It has DC, Web server and SQL Server, server. We recently started to use a VPN to use Outlook to retrieve our emails. I have no say in how we get emails, I am only required to setup the VPN on all the client machines. When a client machine logs into the network it gets a dynamic IP from my DC. When the users log into the VPN the client machine gets a second dynamic IP from the network used to retrieve emails. That all works fine. The problem is; once a person logs into the VPN all their network and web traffic is routed through the VPN. Even the request to our file server goes through the VPN. Our network uses the 192.168.*.* IP range and the VPN uses 10.*.*.* IP range. I am trying to make the VPN only for email on the remote exchange server and want to use my DC for everything else. Is there a graceful way to do this? I am not a network person but I am all we have right now. The remote email server is moving to use the HTTP over RPC, or vis versa I can never remember which run over what, but it a still a couple months out. Mean time our network drags when everyone is logged into their VPN trying to get their emails and browse the web and our network. A gentle nudge in the right direction is all I am looking for. I learn best when I have to figure out 90% of something like this, trial and error is a great motivator for me to get it done right. Thanks-JG
May 20th, 2008 6:54am

Hello, According to your description, if Windows build-in VPN Client is used in this scenario, this issue might be caused by enabling 'use default gateway on remote network' option in VPN Client's VPN settings. With this option enabled, all of outgoing traffic whose destination isn't local will be forwarded to the dial-up network after the VPN connection is up. You could try to disable this option on VPN Client Computer in this way: 1. In Control Panel, double-click Network Connections . 2. Right-click your Virtual Private Network Connection, click Properties , and then click the Networking tab. 3. Click the Internet Protocol adapter, click Properties, and then click Advanced . 4. Uncheck the Use default gateway on remote network box, and then click OK . 5. Click OK . After that, please reconnect the VPN connection and check whether the situation improve. Thanks. Sincerely, Neo Zhu
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May 21st, 2008 11:30am

It didn't work but I think the default gateway is the answer. I think I will have to get in touch with the other end and have them to allow us to use our default gateway. Thanks for your help-JG
May 22nd, 2008 11:43pm

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