Security Basics mailing list archives
DHCP replies ?
From: Netops <michael () bluesuperman com>
Date: Tue, 20 Sep 2005 22:14:39 -0600
Hello,I have created a script that monitors DHCP replies on a network. Run from cron every X, it will send out a DHCP request and wait up to 30 seconds for DHCP replies.
It then compares the replies and creates a checksum. If the checksum ever differs it sends a notification via e-mail with a small report.
Now it works great except that is appears some times out windows DHCP server will send a reply missing some options.
For example a standard reply on the network has the following information: client IP address name servers default route net mask server id broadcast domain nameBut once in a while a DHCP offer will show up containing only the following information:
client IP address default route net maskI am assuming this would be caused by the client not requesting all that information ? Does any else know of anything like this ?
Michael
Current thread:
- DHCP replies ? Netops (Sep 22)