Parsing subnet

[NiKiZe]

(2016-10-18 15:44)Yeswanth Wrote:  I have a query. I want to get the first three numbers from the subnet mask.

For example

Net0/netmask = 192.169.168.34

But i need to get first 3 digits, my output should be like 192.169.168

(assuming that you ment to type netX/ip and not net0/netmask, or that the mask actually is a valid mask?)
There is no way inside of iPXE (yet) to parse parts of anything. The recommended way if you really need this is to do it server side, that is doing chain http://server/script?ip=${netX/ip}
Which in turn returns something like

Code:

#!ipxe
set ippart 192.169.168

but most of the time when someone asks similar things about getting part of ip, normally it is for some kind of logic where gateway or dns would make more sense to use.

What will you use this 3octet mask for?