Discover 10.3.###.2 devices?

I’m really new to networking, and I’m wondering how to do a Discover of addresses like 10.3.001.2, 10.3.002.2, 10.3.003.2 etc. This is on a fractional T1 network where we assign IP’s to various sites. I’m just really lost on how to set up the discovery, as doing 10.3.1.2-10.3.255.2 gives me everything between 10.3.1.2 10.3.1.255 and 10.3.255.2 and more which takes more than a long time to complete.

Call me lazy, because I probably am, but I would rather not key in all 189 addresses that I am up against :neutral_face:

Thanks!

Currently there is no easy way how to do this.

oh well, thanks for clarifying!