[Snort-users] ID number in pcap files (Darpa 99)

Al Lewis (allewi) allewi at cisco.com
Fri May 18 11:32:06 EDT 2018

The ID is the IP ID from the ip header.


Albert Lewis
Cisco Systems Inc.
Email: allewi at cisco.com<mailto:allewi at cisco.com>

From: Snort-users <snort-users-bounces at lists.snort.org> on behalf of Ibrahim Ahmed via Snort-users <snort-users at lists.snort.org>
Reply-To: Ibrahim Ahmed <ibrahim10.h at gmail.com>
Date: Friday, May 18, 2018 at 11:29 AM
To: "snort-users at lists.snort.org" <snort-users at lists.snort.org>
Subject: [Snort-users] ID number in pcap files (Darpa 99)


I had a question about the 'ID' feature in the tpdump file I got from the Darpa 1999 dataset.

Two examples of packets from this file are below:

03/29-06:02:03.398394 ->
PROTO:254 TTL:64 TOS:0x0 ID:1508 IpLen:20 DgmLen:20 DF

03/29-06:02:04.465788 ->
PROTO:254 TTL:64 TOS:0x0 ID:1531 IpLen:20 DgmLen:20 DF

I would like to know what the ID feature refers to - can anyone point me towards the documentation for such pcap files?

Many thanks,
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