Connecting two computers with totally different IP Addresses in a bridged network environment

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Bahador Boroumand

Honorable
Sep 15, 2013
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10,510
Hi everybody,

I have a Mini-PC running Windows XP SP3 having a LAN connected to a D-Link DIR-605L Router and 2 Wireless adapters (I named them WAN1 and WAN2). WAN1 is a TP-Link TN-WN8200ND USB Adapter which receives internet from far away with dynamic IP Address of 149.201.36.xxx and WAN2 is a Cisco AE1200 USB Adapter I bought and added to my Mini-PC for additional management capabilities. I have bridged WAN1 and LAN using Windows XP, but since WAN2 has an IP Address of 169.254.110.111 255.255.255.0 I can’t access it through my Laptop via TeamViewer. I tried adding WAN2 to the bridged connections, but it didn’t work. My laptop receives an IP Address of 192.168.0.xxx SM 255.255.255.0 DG 192.168.0.1.
Could you please help me making WAN2 accessible through my router, without having to change the IP Address of my Laptop each time when I want to connect to WAN2?

Thanks :)
 
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bill001g

Titan
Aug 9, 2012
28,361
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You likely can't make this work. Windows is not a router and you can as you have done trick it into doing some things by bridging and ICS.

I am somewhat surprised you can make this work in bridge mode since you can only have a single IP address from most ISP and you would have to choose the router or the PC.

In any case when you run in bridge mode or you run ICS you can only do this between 2 interfaces. It is a restriction withing the microsoft OS.

I would rethink your design and look at running a router that can use a wireless connection as a WAN interferface.

Still I suspect you are doing something even more complex in that you are using your laptop wireless to contact the router already and want that to access a second wireless network. This is a different issue in that you can only be on one wireless network at a time.

Lets say you connect the wireless wan1 directly to the router. Then your mini-pc would get its internet via its lan and so would your laptop. You of course could access the mini-pc via its lan ip. To use the IP on the second wireless lan is still very complex. You would have to put route statements in the laptop or the router to know about the second network. In some cases depending on what you are trying to access you would have to run ICS in the mini-pc and we are back into a big mess.

You are best off using a ROUTER to do the job it is designed for and a PC for the job it is best designed for. Problem is the things you buy in the store called "ROUTERS" are not actually a device called a "GATEWAY". You in most cases have to buy a true router or load dd-wrt onto a device. Even DD-WRT cannot do everything you may still need a specialized router if you want to run some things.
 
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Bahador Boroumand

Honorable
Sep 15, 2013
3
0
10,510
thanks for your answers. it's eduroam... university network... i don't have reception in my room and it uses 802.1x so i couldn't use a repeater, therefore i have used the plan i described above. however i have reception with high gain antenna... my main problem is that i have a very unstable connection... i either have to repair the wan1 (this was for the time when i had connectify sharin wan1 over lan) to have internet again like every 3 minutes or so or use ipconfig -renew when directly connected my laptop to lan on mini pc and not the router (now that i haved bridged the connections = it's eduroam and it's not a isp, that's why i can have multiple devices connected to it with different ip addresses). i don't know how to stabilize the wifi...
 
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