As long as this software is in alpha testing it is not yet included
in /etc/services files. This means that you may need to add the following
lines into your /etc/services file on your hosts.

--- Please add this to your /etc/services ---
#
# GNU Zebra services
#

zebrasrv	2600/tcp
zebra		2601/tcp
ripd		2602/tcp
ripng		2603/tcp
ospfd		2604/tcp
bgpd		2605/tcp
ospf6d		2606/tcp
