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How do I setup an OS 10.2 VPN server behind a Dlink cable router

Posted on 2003-11-19
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Last Modified: 2010-03-17
We have a 3 mac ethernet network using a Dlink DI-604 (rev. 2.18) dsl/cable router with a cable modem connected. The network and cable internet access are working find.  We are using a tcp/ip based server/client hair salon software package.  One machine has the server and all machines have the client.  I want to be able to remotely (from home, on the road, etc.) connect to the server via an iBook with the client installed.  When I start the program on the iBook it asks for the IP address of the server.  I input the ISP assigned IP address but get no response from the server.  Do I need to setup a vpn so the iBook can get to the server? If so, how?

Thanks,
Tony
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Question by:trbtexas
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by:weed
ID: 9782733
Probably just need to open up an appropriate port on the router, to the server. Have to figure out what ports your software package is using to communicate on then open it.
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by:trbtexas
ID: 9784217
I contacted the software company to see if I can find out which port they use.  Are you talking about opening that port thru the virtual server of the router?  If so, should I then be able to initiate a VPN connection from the remote iBook. Or, by opening the port will I be able to just start the client and put in the ISP IP address for the network and it work.

Thanks
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by:weed
ID: 9784592
No, open the port through to the server machine. Not the router. But the port must be opened ON the router.

Once done, ignore the whole VPN thing. You dont need to deal with it. Any traffic will go right through.
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by:trbtexas
ID: 9786966
Ok, when I find out which port the software uses, do I put that and the servers LAN IP address in the routers 'virtual server' section or does it go somewhere else?  I know every router manufacturer does it a little different. For example, I know SMC routers have an 'access control' section but best I can tell this is a one-way control for restricting access to the internet not the other way around.
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by:weed
ID: 9791277
Most routers have some sort of function for opening ports. I dont know what D-Link is calling it but "virtual server" might be it.
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by:trbtexas
ID: 9792969
I figured out which port to open to connect to the server machine and I am  able to log in thru the 'connect to server' option.  But, when I start the client software a window requesting the IP address for the server comes up.  When I put in the LAN IP address (which I'm told to do by tech support for the software) nothing happens. It just pops up again.  They actually had me log into their server to show me it could be done, but they did not have a router.  Their machine was hooked to cable directly thru the ethernet port, so no firewall.  I'm thinking of making the server the 'DMZ Host' to see if by releasing all restrictions I can make it work. Then, if that works, I will start opening every port possible until one works.  Tech support gave me 3 ports that they were told were used by the software but that didn't work.

Wada you think?
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weed earned 500 total points
ID: 9794352
No, you dont want the LAN IP. You want the public, REAL, ip of the server.
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by:trbtexas
ID: 9797725
Your right.  This morning I made the server a 'DMZ' and I logged in remotely using the ISP IP address and I'm in.  Was very simple. But, now I need to go back and start restricting to get some protection back.

Thanks for the help,
Tony
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Expert Comment

by:njc235
ID: 9933860
From memory I dont think that D-Link model supports proper VPNs.
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