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AskSQLTeam
Ask SQLTeam Question
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 Posted - 2006-02-17 : 08:40:45
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| Paul Langford writes "Hi,Great site you have here - got lots of answers, so firstly would like to day thanks!We have a table with subnets in the form x.x.x.x/yy where yy is the bitmask.We are regularly given lists of IPs without any subnet information, and we need to match the ip to one of our x.x.x.x/yy subnets.Working out the possible subnet and bitmask combinations for an ip and comparing if it's in our table is one way.But I think the best way would be to take the x.x.x.x/yy and explode this into its possible IPs for comparison. We have a lot of subnets (1000s) in this table, and they are all class C, so we could reduce the compare-to list by looking only at the last octets or something.Anyway - your advice would be great!btw the parsename thingy is well cool!Cheers,Paul." |
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TG
Master Smack Fu Yak Hacker
6065 Posts |
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Return IP Addresses given a subnet and mask 