Connecting to office Terminal Server from behind home Linksys router

Connecting to office Terminal Server from behind home Linksys router

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Connecting to office Terminal Server from behind home Linksys router Steve Thomas 08-11-2004
Posted by Steve Thomas on August 11, 2004, 7:32 pm
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OK, this is a bit convoluted, so bear with me.

My office allows VPN connectivity from outside the network via the
Cisco VPN client. Once connected, I should be able to then use Remote
Desktop to connect to a Terminal Server inside the network to manage
my sites remotely. This has been tested from the office on my laptop
via a separate DSL connection (going out over DSL to the internet and
then porting back through the VPN). It worked fine.

At home, I connect to the internet through a Linksys 802.11b wireless
router. I was able to run the Cisco VPN client and get authenticated
into the office LAN (saw the welcome message and everything). But
when I opened Remote Desktop and tried to connect to my server (by IP
address), the connection was refused. PPtP is enabled on the Linksys
router. I see nothing in the router setup that would be blocking Port
3389 traffic.

Does anyone have any suggestions for a next step? My company wants to
ensure that I have connectivity to the servers in the event that a
significant event (like a hurricane) prevents me from coming to the
office.

Any suggestions would be appreciated.


Posted by Duane Arnold on August 12, 2004, 2:42 am
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steventhomas42@yahoo.com (Steve Thomas) wrote in

> OK, this is a bit convoluted, so bear with me.
>
> My office allows VPN connectivity from outside the network via the
> Cisco VPN client. Once connected, I should be able to then use Remote
> Desktop to connect to a Terminal Server inside the network to manage
> my sites remotely. This has been tested from the office on my laptop
> via a separate DSL connection (going out over DSL to the internet and
> then porting back through the VPN). It worked fine.
>
> At home, I connect to the internet through a Linksys 802.11b wireless
> router. I was able to run the Cisco VPN client and get authenticated
> into the office LAN (saw the welcome message and everything). But
> when I opened Remote Desktop and tried to connect to my server (by IP
> address), the connection was refused. PPtP is enabled on the Linksys
> router. I see nothing in the router setup that would be blocking Port
> 3389 traffic.
>
> Does anyone have any suggestions for a next step? My company wants to
> ensure that I have connectivity to the servers in the event that a
> significant event (like a hurricane) prevents me from coming to the
> office.
>
> Any suggestions would be appreciated.
>

Maybe, you need to port forward 3398 to the IP/machine. If that is the
case where you need to do port forwarding, then you'll need a PFW
solution on the machine, since the router will no longer provide
protection on the port and a VPN connection only stops eavesdropping and
cannot stop a hack attempt.

Duane :)


Posted by Mike on August 12, 2004, 11:41 am
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Steve Thomas wrote:

> OK, this is a bit convoluted, so bear with me.
>
> My office allows VPN connectivity from outside the network via the
> Cisco VPN client. Once connected, I should be able to then use Remote
> Desktop to connect to a Terminal Server inside the network to manage
> my sites remotely. This has been tested from the office on my laptop
> via a separate DSL connection (going out over DSL to the internet and
> then porting back through the VPN). It worked fine.
>
> At home, I connect to the internet through a Linksys 802.11b wireless
> router. I was able to run the Cisco VPN client and get authenticated
> into the office LAN (saw the welcome message and everything). But
> when I opened Remote Desktop and tried to connect to my server (by IP
> address), the connection was refused. PPtP is enabled on the Linksys
> router. I see nothing in the router setup that would be blocking Port
> 3389 traffic.
>
> Does anyone have any suggestions for a next step? My company wants to
> ensure that I have connectivity to the servers in the event that a
> significant event (like a hurricane) prevents me from coming to the
> office.
>
> Any suggestions would be appreciated.

Try another Router. I had terrible problems with the Cisco VPN client
and a Dlink router for a client who needed to access the Ford Motor
Company VPN. This client had 2 sites and they both had the same problem
which could be cured by rebooting the routers. Swapped the router on one
site for a Zyxel and the problem went away so we changed the other site
and that was that. Its probably got something to do with NAT but I never
did get a sensible answer out of either Dlink or Cisco.

--

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