[tcpdump-workers] Simple Question: tcpdump and odd # of characters?

[Michael P. Rogers]

Title: Simple Question: tcpdump and odd # of characters?

Hi,

Can you tell me, if the TCP length is advertised as 73 characters, will tcpdump -X just print out 73 characters, or it will it pad to a 74th?  Here's some sample output:

18:50:23.380368 mail.millikin.edu.pop3 > math.millikin.edu.49342: P [tcp sum ok] 2337757198:2337757231(33) ack 3129613746 win 6144 (DF) (ttl 128, id 38612, len 73)
0x0000   4500 0049 96d4 4000 8006 0990 ac10 0113        E..I..@.........
0x0010   ac10 0117 006e c0be 8b57 580e ba8a 1db2        .....n...WX.....
0x0020   5018 1800 ee89 0000 2b4f 4b20 4772 6f75        P.......+OK.Grou
0x0030   7057 6973 6520 504f 5033 2073 6572 7665        pWise.POP3.serve

0x0040   7220 7265 6164 790d 0a42                       r.ready..B

You can see that len is 73, yet 74 characters are being printed.

This is with tcpdump for Mac OS X 10.1.

Thanks,

Michael

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---------------------------------
Dr. Michael  Rogers
e-mail:  [EMAIL PROTECTED]
Phone:  217-424-6327
   
For information about Computer Science at Millikin University, visit http://math.millikin.edu
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