github.io/content/blog/apprentice/tzsp2pcap.en.md

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2022-08-18T09:57:34Z true
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true true Tzsp2pcap TaZmen Sniffer Protocol to Packet CAPture utility program.

This is a very useful tool when working with Mikrotiks. As their built-in sniffer tool has support for TZSP (TaZmen Sniffer Protocol) streaming. This will send all packets that match the filtering options to some destination over TZSP/UDP.

This destination may be some machine running this tzsp2pcap. Allowing you to get a pcap remotely from a Mikrtoik without touching the Mikrotiks disk. This is super useful if the box has traffic as the Mikrotik routers usually has a disk with a size in megabytes.

Using tzsp2pcap

The program has all the options it should.

Allowing you to specify listening port, output file, receive buffer size, output file rotation and some more.

{{< highlight sh >}}# tzsp2pcap -h

tzsp2pcap: receive tazmen sniffer protocol over udp and produce pcap formatted output

Usage tzsp2pcap [-h] [-v] [-f] [-p PORT] [-o FILENAME] [-s SIZE] [-G SECONDS] [-C SIZE] [-z CMD] -h Display this message -v Verbose (repeat to increase up to -vv) -f Flush output after every packet -p PORT Specify port to listen on (defaults to 37008) -o FILENAME Write output to FILENAME (defaults to stdout) -s SIZE Receive buffer size (defaults to 65535) -G SECONDS Rotate file every n seconds -C FILESIZE Rotate file when FILESIZE is reached -z CMD Post-rotate command to execute {{< /highlight >}}