How do I parse the octets of an IP address into environment variables on a batch file?

Greetings -

Does anyone know of a way to parse the octets of an IP address into environment variables in DOS?  There has to be some trick using loops or something to do this.  I would think... :)

What I would like to do is parse the first three octets into one environment variable and just ignore the final octet.

So if I had an IP address if 192.168.100.1, I would like to create an environment variable named %MYIP% and have it contain "192.168.100".

Is this doable?  Thanks in advance...

P.S.  If it would be easier to parse each octet into its own variable such as %OCTET1%, %OCTET2%, etc... I could use that too.  But I'd prefer to have the first three octets in one variable if possible.Start Free Trial