Remote Desktop on LAN

[John]

I enabled Remote Desktop in one of the computers on the LAN and I have no
problem connecting to it from the LAN. But how can I connect to a specific
computer on a LAN from the outside...from the WAN?

Thanks.

 

[Matt Gibson]

Forward port TCP 3389 from your firewall/router device to the computer you
want to connect to.

Matt Gibson - GSEC

 

[John]

OK, but then which address am I trying to connect to, the same internal IP
address like I am trying to connect from within the LAN, but do I need to
try to connecto to the Domain IP address?

 

[Matt Gibson]

You'll be connecting to the external IP address of your Firewall/Router

Matt Gibson - GSEC

 

[John]

And this will connect me to the specific PC on the LAN??
If so, what if I have more then one PCs on the LAN with Remote Desktop...?!

Thanks.

 

[WhiteZin2000]

If you have multiple PC's you want to connect to via Remote Desktop you have
to change the TCP port remote Desktop listens for each additional PC. Then,
you'll have to create rules in your firewall that coincide to the TCP port
each PC is listening on. When you connect from the Public internet you'll
include the TCP port in your Remtoe Desktop connection. For example, suppose
your WAN IP is 68.12.13.44 and you have two PC's to Remote Desktop into (PC
"A" and PC "B"). On PC "A" you leave the default listening port of 3389 but
for PC "B" you change the port to 3390. When you connect via Remote Desktop
from the Internet, your destination for PC "A" would be '68.12.13.44' but
your destination for PC "B" would be '68.12.13.44:3390'. Of course, you'll
have to 1) make sure you have firewall rules which correspond to the correct
PC and 2) make sure you are using DHCP reservations so the internal PC's
always get the same IP address (or manually configure IP info on the target
PC's).

Cheers!

 

[John]

Thank you both!!

If you have multiple PC's you want to connect to via Remote Desktop you
have to change the TCP port remote Desktop listens for each additional PC.
Then, you'll have to create rules in your firewall that coincide to the
TCP port each PC is listening on. When you connect from the Public
internet you'll include the TCP port in your Remtoe Desktop connection.
For example, suppose your WAN IP is 68.12.13.44 and you have two PC's to
Remote Desktop into (PC "A" and PC "B"). On PC "A" you leave the default
listening port of 3389 but for PC "B" you change the port to 3390. When
you connect via Remote Desktop from the Internet, your destination for PC
"A" would be '68.12.13.44' but your destination for PC "B" would be
'68.12.13.44:3390'. Of course, you'll have to 1) make sure you have
firewall rules which correspond to the correct PC and 2) make sure you are
using DHCP reservations so the internal PC's always get the same IP
address (or manually configure IP info on the target PC's).

Cheers!

 

[John]

It's not working....

If you have multiple PC's you want to connect to via Remote Desktop you have
to change the TCP port remote Desktop listens for each additional PC. Then,
you'll have to create rules in your firewall that coincide to the TCP port
each PC is listening on. When you connect from the Public internet you'll
include the TCP port in your Remtoe Desktop connection. For example, suppose
your WAN IP is 68.12.13.44 and you have two PC's to Remote Desktop into (PC
"A" and PC "B"). On PC "A" you leave the default listening port of 3389 but
for PC "B" you change the port to 3390. When you connect via Remote Desktop
from the Internet, your destination for PC "A" would be '68.12.13.44' but
your destination for PC "B" would be '68.12.13.44:3390'. Of course, you'll
have to 1) make sure you have firewall rules which correspond to the correct
PC and 2) make sure you are using DHCP reservations so the internal PC's
always get the same IP address (or manually configure IP info on the target
PC's).

Cheers!

 

[WhiteZin2000]

Here is the article for changing the listening port. perhaps this will
help...
http://support.microsoft.com/default.aspx?scid=kb;en-us;306759 Other than
that, double-check settings in firewall (naturally). Try connecting to each
PC independently using a single rule in the firewall to test with.

Cheers!
It's not working....

 

[John]

Nice...looks like this will do it. I changed the port (sure enough it was
set to the defualt of 3389 which is what the other machine is listening on
of course...) and I'll give it a try later.

 

[John]

Unfortunately it doesn't work. I did change the Listening Port in the
registry, came home, hit connect xxx.xxx.xxx.xxxort number and it does not
connect. The firewall is of course configured with the port number and the
LAN IP...

 

[John]

Here is the article for changing the listening port. perhaps this will
help...
http://support.microsoft.com/default.aspx?scid=kb;en-us;306759 Other than
that, double-check settings in firewall (naturally). Try connecting to each
PC independently using a single rule in the firewall to test with. I am able to connect to the first computer (3389) though...

Cheers!
It's not working....