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Proxy By Pass

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by philldmc

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I have a W2K domain with a separate server running Proxy 2.0. We have a full T1 connection going through a Cisco 1720 router. The router is connected to the Proxy and the Proxy is connected to the network. Currently the Cisco Router is not acting asthe DCHP server; the domain controller is handling the IP address.

Internet filtering software that we have requires Microsoft Proxy; therefore that is why we are still using Proxy.

Here is my question; I need to give access to an outside vendor to one of my local machines using PC Anywhere. How do I open up the channels to allow him access to that machine? How would he connect to the local machine if it has an internal IP address?

I guess I could disconnect the Proxy and hook this machine directly to the router, but that would take the rest of the place off line. I would like to try and avoid this.

5 replies

by acattr

Proxy is really annoying, but you can get this done.

1. Best solution is to get firewall. You CAN have the proxy server and the firewall on the network at the same time. Have that one pcanywhere machine go thru the firewall. Remove proxy client from pcanywhere machine, But leave the proxy settings in Internet explorer so it will still be filtering.

2. You can have the 1720 do NAT
On the routing tab of the tcp/ip properties of the Proxy, enable forwarding(This will allow the 1720 tosee the pcanywhere machine)
set a static address for the pcanywhere machine
enable NAT on the 1720
create a static route on the 1720 to see the pcanywhere machine's IP address, forward packets to the Proxy server
Map port tcp 5631 and udp 5632 to the Pcanywhere machine
set the pcanywhere machines default gateway to be the proxy server, remove proxy client

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