You actually have the subnet mask, you just don't know. You've divided your set of IPs into four subnets 1-63, 64-127,...

Thus, the corresponding subnet mask would be 255.255.255.192. You can then use e.g.
Code:

IsInSubnet(@IPADDRESS0,'10.2.129.64','255.255.255.192')

Edited by sealeopard (2005-11-30 01:42 AM)
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There are two types of vessels, submarines and targets.