Security Incidents mailing list archives

High port UDP probe?


From: damian () ITACTICS COM (Damian Gerow)
Date: Tue, 25 Apr 2000 09:29:05 -0400


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This came up in our firewall:

Apr 24 08:48:01 <hostname> kernel: Packet log: unserved DENY eth0
PROTO=UDP 149.225.113.35:31790 xxx.xxx.xxx.xxx:31789 L=29:9 S=0x00
I=64598 T=115

What concerns me is both the destination port and the packet length.
I'm assuming that L=29:9 means 29 for the whole packet size, and 9 is
the UDP packet size.  Take away the UDP header, leaves you 1?  Am I
reading this correctly?

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