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4hv.org :: Forums :: Computer Science
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Wireless bridge... backwards

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ragnar
Wed Apr 29 2009, 01:00AM Print
ragnar Registered Member #63 Joined: Thu Feb 09 2006, 06:18AM
Location:
Posts: 1425
Hi all,
I have a friend living about 1km away and we have set up a 2.4GHz link which has been working fine with an AP on my end. Internet access is passed through, of course.

I've inherited a small Buffalo Wireless Bridge. These are typically used to 'wireless-enable' otherwise leaded ethernet devices. What I'd like to do is set up the wireless bridge between my LAN and my antenna to transmit towards his apartment (ie operation is backwards from how you'd expect)

I set this up, he was only able to access the local network; internet packets aren't going through. I'm not sure if it doesn't like connections initiated on the wireless side, or if this is normally considered impossible with a vanilla wireless bridge.

Any insight?
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...
Wed Apr 29 2009, 02:17AM
... Registered Member #56 Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
I would try manually setting up the gateway address of the computers on your end to be the address of the bridge, (you will also need to give them static IPs and a proper subnet mask since you won't be using dhcp). That will at least get your network traffic to his network, and hopefully the router on the other end will be smart enough to route you the rest of the way to the internets.
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Steve Conner
Wed Apr 29 2009, 10:42AM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
I'm not quite sure what you mean here. The wireless bridge both transmits and receives, and when using the internet, traffic goes in both directions. The thing to bear in mind is that the bridge is a client device, so it needs an AP to associate with before it'll work. Once it's working, it behaves just the same as a wired Ethernet connection.

If you mean that you want to give your friend internet access from your ISP, then the router in his system must be configured to pass internet traffic onto your router, which will forward it to the intertubes. The details of how to do that are specific to the routers you're using, but it probably involves setting gateways and so on.

You also need to check that the DHCP server(s) are working properly. If two servers are handing out IP addresses, or nobody is, it's not going to be pretty.

If the above scenario applied, and it were me, I'd keep the AP myself and give the bridge to my friend. His network would then become a part of mine, and he would get DHCP info from my router. He/she could also hax me :/
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