Update: there are no any problem with vlans in classifiers, that was my fault. Have been playing with shapers and run into such a problem: u32 classifier does not work (?) for tagged traffic on «non-tagged» linux bridge. In more details: Test bed: Let’s take … Continue readingProblem with shaping vlan-tagged traffic on linux bridge
A history. Some time ago i was looking for a generator of OSPF Hello packets for bombing «test bed». After twidding with packEth (i was catching/forming/checking packets, it was lazy and sleepy, hung occasionally) i left this idea — took two cisco routers and set a … Continue readingUsing Scapy for… fun :-)
I just have wrote about Extract part of FreeRadius” log with a little awk script. Then I decided that it whould be easier and quicker than with Python. Here is a Python script, which does the same (and written in the same way):
Today I needed to extract some records from FreeRadius” log — those with Called- or Calling-Station-Id like XXXYYZ[0-2]. Started to type #!/usr/bin/python in new file, but «suddenly» decided to do it with awk. If you don’t know — FreeRadius’s log contains «sections» separated by empty lines. Every … Continue readingExtract part of FreeRadius’ log
I have finally formatted my «old» paper about using Python’s SPARK module for compiling «little languages» and code generation — as example, for scanning, parsing, analyzing a simple configuration file for configuring HTB shaper and generating a code (shell script). I put it as a staic … Continue readingUsing SPARK module