Re: Specifying more than one IP address per rule

[Dan Purcell <dpurcell@nitrosecurity.com>]

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Do you have to use a userspace tool to set the sets of ip addresses?
What is it called?  Where can I get it?

- -Dan

Mike Wright wrote:
> Dan Purcell wrote:
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>> 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
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