Remote Desktop connection issue with simultaneous wired and wireless being active

Japman

Member
Joined
Dec 30, 2008
Messages
29
Hi All
Herewith a brief description of the setup.
The configuration
• 2 x separately cabled Local lan’s with each having a switch of their own.
• 1 switch on the lan has a Cisco router plugged into it configured for inbound traffic only and no internet access with an application on the workgroup XP server box.
• Another switch on the 2nd lan has a Telkom Mega 105wr router plugged into it and provides the internet access to 4 XP boxes.
The Aim
• The goal is to have the 1st lan’s workgroup server accessed remotely using remote desktop, but thru the Telkom router of the 2nd lan as we are not allowed to mess with the Cisco rotuer’s setup at all.
The status at the moment
• We have installed a wireless USB network adaptor on the 1st lan’s workgroup server as a means of connecting to the Telkom router as it resides in another part of the building and cabling thru concrete walls was not an option.
• We have setup static ip’s in the 10.10.10.X range on both lans’ to enable it to “see” one another.
• To summarise, the XP workgroup server box has a wired Ethernet config as follows:
• IP – 10.10.10.99
• Mask – 255.255.255.0
• Gateway – 10.10.10.254....cisco router
• The wireless USB config on the same box is as follows:
• IP - 10.10.10.51
• Mask – 255.255.255.0
• Gateway – 10.10.10.50.....telkom router
Needless to say, XP gives preference to the “Ethernet” connection when doing ping commands and the like.I have found that when both the “wired” and “wireless” connections are active, I cannot connect via remote desktop from "outside". When I disable the “wired” connection, I am instantly able to connect via remote desktop!I need both connections to be active simultaneously.Bear in mind that the although the box must be accessed remotely, it does not require outbound internet access.
Thanks in anticipation.
Japman
 

PsyWulf

Honorary Master
Joined
Nov 22, 2006
Messages
16,583
• We have setup static ip’s in the 10.10.10.X range on both lans’ to enable it to “see” one another.

Your problem nr1

it does not require outbound internet access.

Your problem nr2 to a degree.

2 Seperate networks configured on 1 PC using the same IP range? What a mess for routing

Ideally you'd run them 10.10.10.x and 10.10.11.x ranges with subnet mask 255.255.255.0 to keep them seperated even when bridged. What seems to be happening is because you use the same IP range for both networks ( devices ) it's routing the trafic for 10.10.10.x through eth0 which is the main network adapter

Gateway for both the wired and wirless card must then be set to use the wireless adsl router's IP,DNS can be whichever DNS servers you use internally,then the adsl router in order of preference
 

Japman

Member
Joined
Dec 30, 2008
Messages
29
Thanks for the feedback, PsyWulf
I have to confess that I originally used the router default Ip (10.0.0.2) and changed the wireless nic to that same range. I then had unreliable instances of being able to connect remotely. Some days it worked and other days it would not. What would cause that?
 

PsyWulf

Honorary Master
Joined
Nov 22, 2006
Messages
16,583
Sheer luck where the Wireless connection was established after the wired giving it priority for outgoing and incoming packets most likely ^^
 

Japman

Member
Joined
Dec 30, 2008
Messages
29
Hi

Changed the wireless nic to 10.10.11.51 and Telkom router to 10.10.11.50. On my wired nic , have set the g/way to 10.10.11.50, dns to 10.10.11.50 and 2nd g/way to 10.10.10.254. On the wireless nic, set ip 10.10.11.51 and g/way to 10.10.11.50.

I can still only connect when I disable the wired lan?
Anything else I can try?

Thanks in advance guys,
 

dadas

New Member
Joined
Nov 9, 2009
Messages
3
Dead thread, but couldn't you just change the metrics on the two interfaces?

A real high one for the one, and a real low one for the other?
 
Top