What does ipmon process do? (4281503)

This article is to provide information about the ipmon process that comes with Authentication Services 4.1

ps -ef |grep ipmon
root      1621     1  0 Nov19 ?        00:00:00 /opt/quest/sbin/.ipmon
root     15534 15513  0 11:13 pts/0    00:00:00 grep ipmon

Ipmon is a utilty to watch for IP address changes and trigger DNS updates via dnsupdate to register the current address(es) in DNS. 

- IP address selection is based on network range & prefix length (and many other flags & attributes on IPv6). More-public ranges are preferred, and larger subnets (shorter prefixes) are preferred.  For IPv4 : Global > RFC1918 > RFC6598 > Multicast > Link-Local > Loopback

- All output is sent to syslog using the daemon facility.

 Usage: /opt/quest/sbin/.ipmon [-v] [-V]
 -v    Verbose output
 -V    Display version number and exit

/ipmon -V
ipmon 4.1.0.20185 (6fb9809) built 2013-08-29.
Copyright 2013 Quest Software, Inc.  ALL RIGHTS RESERVED.

 ./ipmon -v
ipmon: Executing command: ip monitor address 2> /dev/null
ipmon: Executing command: ip address show 2> /dev/null
ipmon: Processing Add 127.0.0.1
ipmon: Ignoring 127.0.0.1
ipmon: Processing Add ::1
ipmon: Ignoring ::1
ipmon: Processing Add 10.5.84.175
ipmon: Considering 10.5.84.175
ipmon: Processing Add fe80::250:56ff:fe9b:6ddb
ipmon: Ignoring fe80::250:56ff:fe9b:6ddb
ipmon: Updating DNS with IPv4 address 10.5.84.175
ipmon: Waiting for dnsupdate (pid 15567)...
debug: attempting unsecure update v41-rh6.i.ts.hal.ca.qsft A to haldev-dns-1.dev.hal.ca.qsft
debug: update of v41-rh6.i.ts.hal.ca.qsft A succeeded
debug: attempting unsecure update 175.84.5.10.IN-ADDR.A

- There is an ipmon man page included with the documenation.