Re: Capturing a C Class range dynamically into an ipset table within iptables. Possible?‏

[Aidas Kasparas <a.kasparas@gmc.lt>]

On 2012.06.15 01:34, José Pablo Pérez wrote:
> Currently with ipset iam able to send to a table the inidivual (/32)
> source IP of a connection...
> 
> I need a way to send to iptables the C Class to an ipset .
> 
> In other words I need the historical list of last 30 min of C class
> ranges that have requested my server.
> 
> I need this preferably done without something outside of iptables (such
> as a daemon).
> 

just use parameter netmask 24 while creating ipset and you're done.

test:~# ipset create test hash:ip timeout 60 netmask 24
test:~# ipset add test 127.0.1.2
test:~# ipset add test 127.3.4.5
test:~# ipset list test
Name: test
Type: hash:ip
Header: family inet hashsize 1024 maxelem 65536 netmask 24 timeout 60
Size in memory: 16632
References: 0
Members:
127.0.1.0 timeout 50
127.3.4.0 timeout 55
test:~# ipset test test 127.0.1.1
127.0.1.1 is in set test.
test:~#



-- 
Aidas Kasparas