From mboxrd@z Thu Jan  1 00:00:00 1970
From: Steven M Campbell <Netfilter@SCampbell.net>
Subject: Re: states and UDP
Date: Fri, 03 Mar 2006 09:44:13 -0500
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T. Horsnell wrote:
> Am I right in thinking that the stateful capabilities
> of iptables (NEW/ESTABLISHED/RELATED etc) only apply to
> tcp connections? If not, how are these states defined for
> udp?
>
> iptables doesnt complain if I add a rule containing
> '-p udp -m state --state NEW'
>
> Thanks,
> Terry.
>
>   
any tracked connection can have state.   For instance, one could write a 
conneciton tracker for NFS over UDP mounts and use the state flag in 
firewall rules.  That's not a real example (to my knowledge), I'm just 
showing that the capability is there.