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AXISHK
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Wireshark

Is it possible to use Wireshark to find out a DHCP server in a VLAN ?
Network Analysis

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PaulOfford

8/22/2022 - Mon
Qlemo

Yes, of course. You just need to filter for all BOOTP/DHCP stuff, and then send a DHCP request (or wait for any to be send).
But DHCP servers do not advertise themselves without a request. Info needs to get "pulled".
AXISHK

ASKER
Sure, I will plug a computer into this VLAN and monitor it through wireshark.

I'm not familiar with wireshark. Can you assist me with screen dump how to setup it up ?

Tks
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Qlemo

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AXISHK

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Tks
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PaulOfford

You might find this blog and video useful - http://www.lovemytool.com/blog/2015/10/introduction-to-packet-analysis-dhcp-by-paul-offord.html

It covers exactly what you are looking for.

Best regards...Paul