Security Incidents: Has anyone seen this pattern?

["VanMeter, John" <John.VanMeter () ost dot gov>]

Interesting Pattern... if you look at the below information you can see two
things.
        1. All IP address start in the 199.x.x.x 
        2. the attacks use the same 13 attempted HTTP Attacks and 14
Suspicious URL
The only different one was 199.111.x.x which used 26 HTTP Attacks and 26
Suspicious URL.

13 Oct 2001

199.219.x.x
                        13 Attempted HTTP Attack
        14 Suspicious URL

199.104.x.x
                                13 Attempted HTTP Attack
        14 Suspicious URL

199.203.x.x
        13 Attempted HTTP Attack
        14 Suspicious URL

199.111.x.x
                26 Attempted HTTP Attack
        26 Suspicious URL

16 Oct 2001

199.227.x.x
        13 Attempted HTTP Attack
        14 Suspicious URL


Has anyone else seen this?
Thank You, 
John van Meter
Security Administrator

Nothing is fool-proof to a sufficiently talented fool


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