How to use lan and wlan with the same ip address

Question

Hello all,

I just bought a M1530 with vista and am pretty happy with it.

Coming from the unix world I am a total vista newbie.

I usually only use the wlan connection but when I have to transfer large files I want to use the lan card. I also want to have the same ip address on both interfaces.

I would now just bridge both cards. But for some reason this doesn't work in Vista.

I think im getting a loop.

This is a general overview of my network:

Client --- Switch --- Accesspoint (bridge) --(W-LAN)-- Notebook
             |                                            |
             ----------------------(LAN)-------------------

So here comes my question: How would you set that up?

Thank you!

Chris

volcano11 · Answer

There is a much simpler solution that migh work if you have a Dell wireless adapter.  Which adpater to you have, a Dell adapter or an Intel adapter?   Steve

msgale · Answer

LAN WAN whats the difference. William Shakespeare wrote "What's in a name? that which we call a rose By any other name would smell as sweet." The technology there is no difference. Example: I have three PC's, two are connected to each other via a four port switch. My Notebook, a Latitude D820 can connect to either thru an access point that is part of my switch. If, however I wish to connect to the outside world the the routing goes thru the router that is part of my switch/access point. To my local PCs it makes no difference. I am assuming that you are using a broadband connnection to the "WAN" or have an auto dialer.

What is it that you are trying to accomplish?

mrkofee · Answer

@volcano11 wrote:

There is a much simpler solution that migh work if you have a Dell wireless adapter. Which adpater to you have, a Dell adapter or an Intel adapter?

Steve

I have an Intel 4965AGN.

LAN WAN whats the difference. William Shakespeare wrote "What's in a name? that which we call a rose By any other name would smell as sweet." The technology there is no difference. Example: I have three PC's, two are connected to each other via a four port switch. My Notebook, a Latitude D820 can connect to either thru an access point that is part of my switch. If, however I wish to connect to the outside world the the routing goes thru the router that is part of my switch/access point. To my local PCs it makes no difference. I am assuming that you are using a broadband connnection to the "WAN" or have an auto dialer.

What is it that you are trying to accomplish?

Well what I'm trying to accomplish is being able to just plug in a lan cord on my home network without having to reconfigure a lot. Just as I did it on my old laptop running linux. On linux I realised that with a bridge because I don't want to have two different ip addresses on my laptop. Currently I set it up as a bridge but do have to disable the W-Lan interface to not get a loop manually.

Message Edited by mrkofee on 07-15-2008 01:56 AM

Message Edited by mrkofee on 07-15-2008 02:04 AM

mrkofee · Answer

Is this such an uncommon task in the Windows world?!?

I wouldn't mind using the commandline.

Is there at least something like trunk in windows? then I could use something like failover with the lan interface as the master device and wlan asthe backup.

mrkofee · Answer

Well I don't know how to describe my requirements any better, but let me try it again. I have:

- One Laptop that can have only one IP-Address

- A switched network

What I want to be able to do:

- be online using wlan...

- ... and then attach a lan cable for higher transfer speed (to my local fileserver) without having to configure/clicking anything

I think I need some pseudo device because of the way Ethernet works. (MAC-Addres).

msgale · Answer

I can not help you, because I am unable to understanding what you are ttrying to do.  What I can say is that if it can be done in UNIX/Linux ia can be done in Windows the network model is the same.

msgale · Answer

Do you use a modem to connect to the switched newtwork?

mrkofee · Answer

no. Just an rj45/cat6 cable. There is no PPP, no VPN, nothing special. Just a switch and an access point.

mrkofee · Answer

Hmmm... you think i am reffering to WAN/Internet connectivity because I said that there is only one IP-Address available for the laptop? I am not.

This all has nothing to do with internet connectivity. This is all lan as in local area network. My (home)-network is pretty large and complex. But all I want is what I said two posts ago: Use the lan and wlan interface on my laptop running vista at the same time with the same ip address.

msgale · Answer

Lets try this: My configuration :

Desktop wired connection to combo box (Router, switch, access point)

Notebook wireless connection to combo box

combo box connected to DSL modem then to ISP

Everybody can talk to everybody else. No cabling changes needed

DNS supplied by ISP

DHCP supplied by combo box

PCs use dynamic IP

PS Did you check the Network and Sharing Center in the Control Panel

msgale · Answer

Are you are refering to the RJ45 connection as the LAN interface, then what do you mean by the WAN interface

mrkofee · Answer

Please look at my posts again. I never said anything about WAN. ;-) I said WLAN (Wireless LAN). I want to bridge (or do whatever I have to to get that to work) between the LAN and the WLAN interface.

msgale · Answer

I am so sorry, I missed that from the beginning, finally I understand what you are trying to do.  Its is 4:00 AM here, so I am a little slow.  I will set up a test configuration and see what IO can figure out.  Perhaps using dynamic IPs with DHCP would solve your problem, let me try when I wake up.

mrkofee · Answer

Just wanted to stay in touch... Have you already had some time to set up a test configuration?

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How to use lan and wlan with the same ip address

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