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On my network, users connect (a) wirelessly to their own combination bridge, router, and signal amplifier, then from there (b) wirelessly to my secure hardware. Some users can connect to my hardware, but don't get an IP address from my DHCP server. Any suggestions on how to troubleshoot this with Wireshark?

asked 23 Jul '11, 17:53

ThatAMan's gravatar image

ThatAMan
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accept rate: 0%


You can run Wireshark on a mirroring port close to your DHCP server to see whether the DHCP requests from the clients get to the DHCP server. If they do, you should then look if the DHCP server responds (if not, maybe it ran out of addresses to hand out.

Depending on the outcome of this first check, you may want to run Wireshark near the Access Point to see whether the DHCP requests and responses are seen there.

For help on how to setup things in order for Wireshark to be able to see the traffic, have a look at http://wiki.wireshark.org/CaptureSetup

permanent link

answered 23 Jul '11, 23:26

SYN-bit's gravatar image

SYN-bit ♦♦
17.1k957245
accept rate: 20%

A thousand thanks, SYNbit! You know your stuff! Another question: How do I troubleshoot this from the client side?

(24 Jul '11, 08:51) ThatAMan
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question asked: 23 Jul '11, 17:53

question was seen: 4,107 times

last updated: 24 Jul '11, 15:38

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