mgale / dhcpsnoop Goto Github PK
View Code? Open in Web Editor NEWDHCP Snooping app - great for finding rogue DHCP servers
dhcpsnoop's Introduction
DHCPSnoop
=======
DHCPSnoop will listen on a network interface for DHCP replies from it's own DHCP requests and any other requests it can see during the runtime.
It will then verify the DHCP response parameters that are returned against the settings in it's configuration file.
This helps out in a dev environment where developers and QA staff will accidently turn on a DHCP server :)
Installation
============
To install:
python setup.py build
sudo python setup.py install
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dhcpsnoop's Issues
Feature Request: Add VLAN option
I think we could expand the usability on this if we included an option to send a VLAN tag as an argument. That should help people troubleshoot issues with getting addresses from correct pools in a multi VLAN environment. I'll create a branch to work on it.
When using multiple servers a mis-match poisons the well for future checks.
At lines 280/281 in dhcpsnoop.py we change the value in the reply.
This ensures that it will no longer match in further iterations
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