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Proxy Server 2.0 on WinNT

By Zharia ·
I run proxy for my Win95/98 workstations to access the internet via proxy. I have two nic cards, one internal, one external for the internet. The external one is the only one that has a default gateway. Neither my server or my workstations can access the internet. They keep timing out. I tried pinging the default gateway and it comes back as timed out. However I can ping the ISP IP address ok. My ISP says its a proxy configuration problem. They have checked the local telephone line with no problems there. When I do a tracert to my ISP it shows me a different gateway. All the IP addresses supplied by my ISP are all correct according to them. Have I missed something somewhere?

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Proxy Server 2.0 on WinNT

by dmiles In reply to Proxy Server 2.0 on WinNT

This problem came up in a similar question last week in the forum and it refered to the hardware of UPS.Research the questions and it may give you an idea of the cause.

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Proxy Server 2.0 on WinNT

by shawn.tooley In reply to Proxy Server 2.0 on WinNT

Check and make sure that your LAT (Local Address Table)is correct. It should include only IP's on your LAN. You could also turn on IP Forwarding in the Network Properties to see if this makes it work. I would not leave it on though; just use it to see if it corrects the problem. This would surely let you know if its your problem or the ISP's. Good luck...

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Proxy Server 2.0 on WinNT

by Zharia In reply to Proxy Server 2.0 on WinNT

My LAT is correct

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Proxy Server 2.0 on WinNT

by dmiles In reply to Proxy Server 2.0 on WinNT

The problem is pointing towards the WINS configuration which could be rectified by reinstalling the dhcp and wins configuration.Hope this helps

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Proxy Server 2.0 on WinNT

by Zharia In reply to Proxy Server 2.0 on WinNT

I dont run DHCP:)

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Proxy Server 2.0 on WinNT

by NetTek In reply to Proxy Server 2.0 on WinNT

I think what is happening is that because you only have a default gateway set on the external NIC of your Proxy (which is how it should be set up), the Proxy is sending all responses that are coming from your LAN out the external NIC to the Internet. Your internal PCs will therefore receive no response. You need to tell your proxy server that the IP addresses for your LAN are internal. You do this by going to the command prompt and adding a static route:
c:\route.exe add -p 209.1.2.0 mask 255.255.255.0 209.1.2.1
The -p means persistant (this will reinstate the route statement after reboot). 209.1.2.0 is whatever the internal Net ID is for your LAN. mask 255.255.255.0 is whatever the network mask is for your LAN. 209.1.2.1 is the IP address for the internal NIC on your Proxy.
This command will tell your proxy to send responses to all IP addresses having your Net ID back out its internal NIC.

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Proxy Server 2.0 on WinNT

by Zharia In reply to Proxy Server 2.0 on WinNT

Poster rated this answer

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Proxy Server 2.0 on WinNT

by jaybrdie In reply to Proxy Server 2.0 on WinNT

On the Internal NIC the Default gateway should be set for the Router to the internet. Make sure that the Preferred DNS on Internal NIC is set your Server. On the external NIC the default gateway should be set to the Router (like the internal NIC is set). The external NIC's IP should be on the same subnet as the Router's IP. The External NIC's Preferred DNS should be what your IP provider gave you. This covers just the NICs but there are several other areas you should check is this doesn't work. Let me know and I can tell you where else to look. GOOD LUCK!

Jay

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Proxy Server 2.0 on WinNT

by Zharia In reply to Proxy Server 2.0 on WinNT

All my settings have been checked and are correct

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Proxy Server 2.0 on WinNT

by salexiev In reply to Proxy Server 2.0 on WinNT

Hello,
First, it will be good to check LAT table ? it must contain only your internal IP addresses (internal NIC). If it is OK, check if the workstations have MS Proxy client installed (from the server directory ? mspclnt) ? if they have this client all should be ok (although probably you will not be able to ping the Internet, because of the preset filters).
Hope it will work.

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