Networking with DHCP off another network?

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mbarnsdale

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Jul 2, 2013
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I had posted a question about a month ago and I think I figured it out, that it is currently impossible but I now have a different question regarding ICS (or bridging) and DHCP. Before I go on, here's the old question:

Okay, so my neighbor decided to be a nice guy and 1. let me use his long range wifi card, and 2. is allowing me to use his internet so long as I pay half of the internet fee (which is pretty pricy in this area). He said I could connect as many devices as I need (I have 2 PCs, 2 laptops, and 3 Android tablets) since he's got really high speed.

Here's my problem, the long range wifi will work great for the PC, but I can't connect my other devices to his Wifi. I'm having connectivity issues when trying to bridge his connection to my network via the NICs or try ICS. I've followed the instructions step by step still to no avail. With Ad-Hoc my devices will work spotty, but the Android devices don't work at all. ICS doesn't work at all, and Bridge mode works, but for some odd reason, only two devices besides the PC work at a time. Besides that, when in bridge mode, I have to set the PCs and Laptops to static.

In my arsenal I have:

Long range USB Wifi which connects my PC to his wireless, a Linksys WRT54GS wireless router which connects to my PC via ethernet, various hardware as noted above.

I was wondering if I got one of the routers that use the G3/G4 cell cards, would that work in supplying my house with Wifi? Something like this:

http://www.amazon.com/TP-LINK-TL-WR702N-Wireless-Repeat...

If not, which I'm guessing it won't, is there another piece of hardware out there that will help me? I'd like to utilize the long range wifi card my friend gave me.

Thanks in advance!
Click to expand...

My new question is: With my PC that has the long range wifi, can I grab that signal and either bridge the wifi NIC along with the ethernet NIC then have that go to a wifi router that can do DHCP? Or possibly do an ICS with that same setup? Also, what would the advantages be one over the other?

I'd like to use the Linksys WRT54G as the wifi router and not have to do Ad Hoc.

Any help I can get with this would be greatly appreciated!
 
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Yes turn off DHCP on WRT54g just log into it and there will be a checkbox to uncheck for dhcp. When you bridge 2 connections they act like one and no you do not need any static in this senario dhcp will be passed to every device you have that askes for an IP from your friends network.

PS I guess I should warn you in this setup you are just a part of his network if he wants to or knows how to get into your computers ect he can...

Thent

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thently

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Well you almost got it right. But you will not host your own dhcp at all you will have to use his that is coming through your wifi connection to his house. The setup should go like this. wifi to your computer then bridge the wifi and your wired nic then run the wired connection to your wireless but not into the internet port into one of the other 4 regular ports. Before you conect everything go into your wireless and turn off DHCP. Now don't forget you pc will have to be on 24/7 for the internet to work on everything else as it is passing the signal allong accross its bridge.

Thent
 
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mbarnsdale

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Jul 2, 2013
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Okay, I think I understand. Will I have to turn off DHCP on the WRT54G and if so, what do I uncheck? Also, should the NICs (both the Ethernet and Wifi NIC) be set to static?

Also, when I bridge, should both the wired and wireless NIC be on the same subnet? i.e. 192.168.25.x? or should they be on different i.e. 192.168.25.x (wired) and 192.168.1.x (wireless)?
 
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thently

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May 10, 2007
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Yes turn off DHCP on WRT54g just log into it and there will be a checkbox to uncheck for dhcp. When you bridge 2 connections they act like one and no you do not need any static in this senario dhcp will be passed to every device you have that askes for an IP from your friends network.

PS I guess I should warn you in this setup you are just a part of his network if he wants to or knows how to get into your computers ect he can...

Thent

 
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