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Can't find my bridge

 
 
Bryant Smith
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      06-19-2006, 04:24 PM
I have a wireless bridge (a Motorola WR850G V3 running dd-wrt V23 SP1)
that I can't seem to connect to. Its MAC address shows up on my
router's (router is also a WR850G with the same dd-wrt firmware)
wireless clients list, but I can't seem to ping it from the wireless
side or through its LAN ports. I have tried several different IP
addresses (the most likely ones for this model) but I get no response.
I have also tried using arp on my router to tell me the IP address, but
it only lists the othere wireless clients and not the bridge. Could the
bridge not have an IP address? If it doesn't have an IP address, how
can I connect to it? It also doesn't seem to reset to defaults when I
hold the reset button down. Does anyone have any ideas as to find this
bridge?
Thanks,
Bryant
 
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Bryant Smith
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      06-20-2006, 11:50 PM
Bryant Smith wrote:
> I have a wireless bridge (a Motorola WR850G V3 running dd-wrt V23 SP1)
> that I can't seem to connect to. Its MAC address shows up on my
> router's (router is also a WR850G with the same dd-wrt firmware)
> wireless clients list, but I can't seem to ping it from the wireless
> side or through its LAN ports. I have tried several different IP
> addresses (the most likely ones for this model) but I get no response. I
> have also tried using arp on my router to tell me the IP address, but it
> only lists the othere wireless clients and not the bridge. Could the
> bridge not have an IP address? If it doesn't have an IP address, how
> can I connect to it? It also doesn't seem to reset to defaults when I
> hold the reset button down. Does anyone have any ideas as to find this
> bridge?
> Thanks,
> Bryant


Just a followup...

I ran nmap -sP (ping sweep) on the following subnets while connected to
one of the LAN ports and did not get a response other than the machine I
ran it from:
192.168.0.0-254
192.168.1.0-254
192.168.10.0-254 (Motorola default)
192.168.253.0-254
192.168.254.0-254 (Previous known setting)

Are there any tools out there that can sniff out network traffic so I
can see it it is trying to communicate? I know it is doing some
wireless activity as my router shows it in its wireless client list. I
just can't talk to the bridge.
 
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John Navas
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      06-21-2006, 04:26 AM
On Tue, 20 Jun 2006 16:50:20 -0700, Bryant Smith
<(E-Mail Removed)> wrote in
<e7a13l$3qt$(E-Mail Removed)>:

>Are there any tools out there that can sniff out network traffic so I
>can see it it is trying to communicate? ...


Ethereal.

--
Best regards, FAQ for Wireless Internet: <http://Wireless.wikia.com>
John Navas FAQ for Wi-Fi: <http://wireless.wikia.com/wiki/Wi-Fi>
Wi-Fi How To: <http://wireless.wikia.com/wiki/Wi-Fi_How_To>
Fixes to Wi-Fi Problems: <http://wireless.wikia.com/wiki/Wi-Fi_Fixes>
 
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Jeff Liebermann
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      06-21-2006, 04:39 AM
Bryant Smith <(E-Mail Removed)> hath wroth:

>I ran nmap -sP (ping sweep) on the following subnets while connected to
>one of the LAN ports and did not get a response other than the machine I
>ran it from:


Try:
nmap -T5 -sP 192.168.1.0/24
or if you have an hour or so:
nmap -T5 -sP 192.168.0.0/16
Without the -T5, it takes forever.

>Are there any tools out there that can sniff out network traffic so I
>can see it it is trying to communicate? I know it is doing some
>wireless activity as my router shows it in its wireless client list. I
>just can't talk to the bridge.


Don't bother trying to sniff the wireless. Sniff the wired traffic
with Ethereal:
http://www.ethereal.com

However, try this first:
1. Power off the router.
2. Take you best guess and start pinging the router. Ignore the
error messages.
3. Turn on the power.
4. After the initial warm-up (about 10 seconds), you'll see a normal
response to the pings. That will go for about another 30 seconds and
then stop. If that's what happens, you'll need to "de-brick" the
Motorola WR850G V3. I think (not sure) that the Linksys WRT54G
proceedure is the same. Google or ask for details. It's not too
horrible.
--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
 
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