Misty Monks,

I have a long list of IPs and IP ranges that correspond to various users. Then I'm given a single IP address and need to determine which user it is. For example, my user IPs might look like:

User 1 = abc.def.ghi.001 abc.def.ghi.002 abc.def.ghi.003
User 2 = jkl.mno.pqr.0/255.255.192.0
User 2 = stu.vwx.0.0/255.255.192.0 (yes, another range for User 2)

and so on for dozens or hundreds of users.

Then, given a single IP adress, determine which user it is. Prefereably without having to do something brute force like looping through every range with a subnet mask module to test against my IP.

All good ideas will be greatly appreciated.

Thanks




Time flies like an arrow. Fruit flies like a banana.

In reply to Quickly determine which IP range an IP belongs to. by punch_card_don

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