This connection is probably your problem:

. [10.252.95.13:0 <-> 10.119.58.167:0      ] :   1 connections : 0 bytes

tcpprep in the "auto" modes uses a weighted approach, and the 1
connection/0 bytes sounds likely to not be enough to trigger a
definite decision.   Using a lower --ratio value (say 1.0) may solve
the problem depending on what's going on.

On the other hand, you could just use the --port and --services
options to split based on source/destination port.

# cat >service.txt << EOF
http tcp/80
kismet tcp/2005
EOF

# tcpprep --port --services=service.txt -i my.pcap -o my.cache

Regards,
Aaron

On 7/20/07, john mcnicholas <[EMAIL PROTECTED]> wrote:
> Aaron, etc,
>
> fyi: as you suspected the latest build did fix the error: (msg was something
> like;) "Um, shouldn't get here.".  Thanks!
>
> Regarding the second error:
>
> this command:
>
>         /usr/local/bin/tcpprep --minmask=24 --maxmask=16 --auto=router
> --pcap= input.appcapture --cachefile=x.cache
>
> results with this:
>
>         Error: unable to build a valid list of servers. Aborting.
>
> Here's some info on the capture file (and yes, i don't believe the
> min/maxmasks played a factor) but tried it anyway:
>
> . 867 connections were found.
> . 16 tier pairs were found.
> . [10.119.61.1:0 <-> 10.252.96.16:0        ] :  31 connections : 427,159
> bytes
> . [10.119.61.7:0 <-> 10.252.96.16:0        ] :  12 connections : 642,589
> bytes
> . [10.119.57.12:0 <-> 10.252.96.16:0       ] :  23 connections : 472,319
> bytes
> . [10.252.95.13:0 <-> 10.119.58.167:0      ] :   1 connections : 0 bytes
> . [10.252.96.16:0 <-> 10.119.61.20:0       ] :  32 connections : 740,951
> bytes
> . [10.252.96.16:0 <-> 10.119.61.24:0       ] :  18 connections : 507,330
> bytes
> . [10.252.96.16:0 <-> 10.119.57.34:0       ] : 247 connections : 4,159,336
> bytes
> . [10.252.96.16:0 <-> 10.119.61.47:0       ] :  23 connections : 842,232
> bytes
> . [10.252.96.16:0 <-> 10.119.57.66:0       ] :  50 connections : 2,308,549
> bytes
> . [10.252.96.16:0 <-> 10.119.57.71:0       ] :  41 connections : 677,771
> bytes
> . [10.252.96.16:0 <-> 10.119.57.79:0       ] :  67 connections : 1,406,962
> bytes
> . [10.252.96.16:0 <-> 10.119.57.81:0       ] :  20 connections : 1,061,113
> bytes
> . [10.252.96.16:0 <-> 10.119.57.89:0       ] :   7 connections : 96,451
> bytes
> . [10.252.96.16:0 <-> 10.119.63.102:0      ] : 141 connections : 2,366,090
> bytes
> . [10.252.96.16:0 <-> 10.119.57.166:0      ] :  76 connections : 1,363,850
> bytes
> . [10.252.96.16:0 <-> 10.119.57.173:0      ] :  78 connections : 2,361,052
> bytes
>
> Of the 867 connections all went to just 2 server ports: either  80 or 2005
> (kismet)
>
> Does anything seem suspicious?
>
> Initially, i thought the high number of duplicate timestamps might be
> causing a problem, but a
> subset of this trace without duplicates didn't change the output/behavior.
>
> Thanks again for your help.
>
> John
>
>
>
>
>
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>


-- 
Aaron Turner
http://synfin.net/
http://tcpreplay.synfin.net/ - Pcap editing & replay tools for Unix

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