Security Incidents: RE: Odd entries in my Security Router logs

From: Andrews, Jonathan (US - Hermitage) <joandrews_at_deloitte.com>
Date: Tue, 10 Dec 2002 11:17:54 -0600

192.168.0.0/16 is a privately addressed netblock. These packets could not
be routed over the Internet. Do you NAT at your edge router and were these
traces obtained from the "internal" interface of your router?

If so, this would have to be something on your internal network broadcasting
this traffic.

Jonathan Andrews, CISSP CCSA
Sr. Information Security Analyst
Network Security Group
Deloitte & Touche

-----Original Message-----
From: Julian Young [mailto:julian.young_at_nl.compuware.com]
Sent: Monday, December 09, 2002 3:38 AM
To: incidents_at_securityfocus.com
Subject: Odd entries in my Security Router logs

I keep seeing these entry in my external routers log files. Does any
one recognize theme and know what type of attack they are. ok is
obviously something to do with DHCP. but i recently had a firewall
compromised and i still don't know how. since that wall had dhcp open
I wounder if this could have been the trick.

I has left the ip number as they are since none of them belong to me or
in any range i use !

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