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by jasonbis 1 view

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I have a dsl router at my office and a cable modem at home and want to establish a remote connection between the two using pcanywhere. However, the cisco 676 router is stopping me from making the connection. I know how to change the ports pcanywhereis using. That isn't the problem. The problem is all the workstations here at the office have non-routable IP addresses and I obviously can't expect to connect to a non-routable IP from home. My home computer can't see my office computer. The only routable address I have is the one for my router. How do I make my home computer connect to my router using pcanywhere and then connect to my office workstation? Please don't give a brief answer. I need specifics and a very detailed answer.

13 replies

by joseph moore

You need to be able to do port mapping from the 1 static IP address that is on the Internet-side of your router to your workstation's non-routeable internal IP.
I don't know if your router has that functionality, though. Typically, I have seen this on a firewall that can do NAT and port mapping. So, it depends on what other hardware your office has.

Not sure if this is exactly what you are looking for, but at least it is something.

by joseph moore

Ok.
What kind of router do you have? What make/model? What interface to connect to it do you usually use, HTML, telnet, Hyperterminal, its own application?
Some details would be appreciated.

by joseph moore

And on a side note, if you just have your office connected to the router with NO protection at all, then you really oughta get a firewall. You are open to all kinds of nasty stuff.

by timthetoolman

Hi,

In a nutshell, you can only see to the router's IP address, so that thats the address you specify with PCAnywhere at home.

Choose a port to talk on for PCAnywhere.

Then you need to set up a "port forward" on the router at work, forwarding all traffic on the port chosen above to a particular machine in your work network.

You will then be able to communicate with that machine on that port.

This is a bit of a limitation on NAT, though. For each machine you want to use PCAnywhereto, you'll need to use a different port to forward to each machine.

And worse still, some routers have a finite number of port fowards allowed...

There are further complications if you have a firewall, of course, and you'd need to open the chosen ports there too.

Hope this helps,
Cheers,.
Tim.

by jasonbis

Everyone keeps telling me I need to set a port forward on my router but they don't tell me how to do it. I would do it if I knew how. I need specifics. I don't have a firewall.

by wagnerrc

In order to get your work PC, you would have to add a NAT address for it at the firewall or router. You then have to add a specific port rule at the firewall to allow it. Of course the NAT address would have to be a routable address that is providedfrom your company's ISP. Otherwise it shouldn't ever work if your firewall is set up properly.

by jasonbis

As I said in my question, I have a ciso 676 router and I can connect to the router with any number of applications. Mostly I use hyperterminal. How do I set a port foward to use with pc anywhere? Whoever can answer the question above in a very detailed explanation to my satisfaction will get an additional 1000 points.

by timthetoolman

Hi,

Specifically to answer your question (The example is for Netmeeting so use different ports), taken directly from the manual...

"Enhancements to Network Address Translation (NAT) functionality include:

Support for NAT for H.323 -- For example, Microsoft NetMeeting is an H.323 application that has been successfully tested with NAT. Create the following static NAT entries for outside to inside NetMeeting calls to work:

set nat entry add inside_ip address 1503 outside_ipaddress 1503 tcp

set nat entry add inside_ip address 1720 outside_ipaddress 1720 tcp
"

The link to the "Cisco's Broadband Operating System User's Manual" is...

http://www.cisco.com/univercd/cc/td/doc/product/dsl_prod/c600s/cbos/cbo210rn.htm

(remove spaces from the above URL)

And the link to the "Cisco 676 ADSL Router Installation and Configuration Manual" is...

http://www.cisco.com/univercd/cc/td/doc/product/dsl_prod/c600s/guidarch/c676cfg/config.htm

(remove spaces from the above URL)

If this is work's router, it would be worth your while familiarising yourself will the router's functions and capabilities before you begin.

Cheers,
Tim.

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