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VPN Configuration With wrt54g

I am attempting to set up a VPN connection for traveling Managers. I have a fractional t1 that comes through a netopia 5100 provided by my isp. I then have a wrt54g linksys router which is performing NAT that then goes out to switches. My vpn server is behind a firewall.
I have set port forwarding up on the router,but I can't seem to make a connection. I'm stumped at this point. Also is it necessary to have 2 nics configured on the VPN server?

Technicon-SG

Your likely problem is that the firewall is blocking some of the VPN ports...VPNs use some non standard protocols that some firewalls will not forward (or require special configuration to do so).

If you could post a diagram of your network(with specific refferences to the models of your equipment) I will try to make some better suggestions.

I would prefer to see the VPN device on the outside of the firewall...the netopia is also capable of providing VPN services (unless it is configured as a bridge).

cltool

ASKER

Here is a brief summary of my network setup.

Pri > T1 netopia 5100 ip 72.17.157.97
sn 255.255.255.248

5 port switch (unmanaged)

Linksys WRT54G Public ip 72.17.157.98
dg 72.17.157.97
sn 255.255.255..248
Internal Ip 192.168.40.47
sn 255.255.255.0
DNS 216.199.46.11
Performs NAT

HP ProCurve 2524 ip 192.168.40.46
sn 255.255.255.0

Windows 2003 ip 192.168.40.19
VPN Server sn 255.255.255.0

The Netopia 5100 is provided by my ISP and therefore can not be managed locally.
That's pretty much the setup of my network. Thanks for your help, and let me know if you need any further information.

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Technicon-SG

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cltool

ASKER

Unfortunately I don't have the money allocated to purchase any new equipment at the time so I have to make do with what I have. Thanks for the help.