- - DRBD (kernel module and userspace utils)
- http://www.drbd.org/
- - fping
- http://fping.sourceforge.net/
- - Python Twisted library (the core is enough)
- http://twistedmatrix.com/
+ - bridge utilities
+ http://bridge.sourceforge.net/
+ - iproute2
+ http://developer.osdl.org/dev/iproute2
+ - arping (part of iputils package)
+ ftp://ftp.inr.ac.ru/ip-routing/iputils-current.tar.gz
+ - Python 2.4
+ http://www.python.org