Alias for ip range…
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How can I create an alias for the ip range 192.168.20.50 … 192.168.21.250 ?
Or isn't this possible..?
cheers hank
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You could use the net type and use subnet notation to create one.
IE: 192.168.1.0/24 would be 192.168.1.1-254
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Btw, if you can't capture all IPs in networkranges and some single IPs are left add them to the same networks alias as /32 subnets ;)
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Address ranges are not necesarilly representable with CIDR, like f eks: i like to block 192.168.1.100-200 but that can't be "created" with a CIDR range. or am i wrong here and need to read upon CIDR ranges?
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@mastrboy:
i like to block 192.168.1.100-200
download & unzip this:
http://www.irbs.net/internet/postfix/0401/att-3032/cidr_range.pl.gz
then,
% perl cidr_range.pl 192.168.1.100 192.168.1.200
returns:
192.168.1.100/30
192.168.1.104/29
192.168.1.112/28
192.168.1.128/26
192.168.1.192/29
192.168.1.200/32then, add those CIDR ranges to a Network alias.
hth.
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blokking .100 till .20 with submask's
blokking 192.168.1.100/29 gives .100 till .103
blokking 192.168.1.104/29 gives .104 till .111
blokking 192.168.1.112/28 gives .112 till 127
blokking 192.168.1.128/26 gives .128 till .191
blokking 192.168.1.192/29 gives .192 till .199
blokking 192.168.1.200/32 gives .200 -
thanks Tenzen, great tool to have :)
(but still a little annoying to have so many aliases that could have been merged into one :-\ )
edit: se below post ;)
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Thats kinda spiffy. Would be nice if we had a CIDR lookup tool based on this type of thing.
mastrboy: you mean multiple aliases, not rules, eh? because you just plug all of these into an alias and then reference the alias inside your firewall rule (1 rule required, 1 alias with multiple entries).