Re: Specifying more than one IP address per rule

[Mike Wright <xktnniuymlla@mailinator.com>]

Dan Purcell wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Do you have to use a userspace tool to set the sets of ip addresses?
> What is it called?  Where can I get it?
> 

The ipset package provides both a kernel patch and a utility 
conveniently named ipset.

http://ipset.netfilter.org

:m)

> - -Dan
> 
> Mike Wright wrote:
> 
>>Dan Purcell wrote:
>>
>>>-----BEGIN PGP SIGNED MESSAGE-----
>>>Hash: SHA1
>>>
>>>Is there a way (such as an iptables match) that allows one to specify
>>>more than one IP address for one rule?  I have in mind something like
>>>the multiport patch -- allowing the user to specify multiple tcp / udp
>>>ports per rule.  For example, I have the following ruleset that I would
>>>like to convert into one rule:
>>>
>>>iptables -N BADGUYS
>>>iptables -A BADGUYS -s 192.168.10.1    -j RETURN # 192.168.10.1 not bad
>>>iptables -A BADGUYS -s 192.168.10.0/24 -j DROP
>>>iptables -A BADGUYS -s 192.168.11.2    -j DROP
>>>iptables -A BADGUYS -s 192.168.11.3    -j DROP
>>>iptables -A BADGUYS -s 192.168.11.6    -j DROP
>>>
>>>I would like something like
>>>
>>>iptables -A BADGUYS -m multiip --srclist
>>>[!192.168.10.1,192.168.10.0/24,192.168.11.2,192.168.11.3,192.168.11.6]
>>>- -j DROP
>>
>>I've had very good success using the ipset patch to iptables.  It allows
>>you to use a single iptables rule to refer a named set of ips or nets,
>>etc.  The set can then be updated on the fly without having to mess with
>>your iptables rules.
>>
>>hth, :m)
> 
> 
> - --
> 
> - --------------------------------------------------------------
> Dan Purcell, Software Engineer     dpurcell@nitrosecurity.com
> NitroSecurity, Inc.                            (208) 552-5332
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.6 (GNU/Linux)
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
> 
> iD8DBQFF/xT0Tqu8TzII/vURAswuAKCtvI69OGwoJ/R6T7yzfENzfFNYFACg3/aM
> m+kLwX1TifdIKbKnTeMD7aw=
> =As7F
> -----END PGP SIGNATURE-----
> 
> 
> 
>