From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nick Drage <nickd@metastasis.org.uk>
Subject: Re: No internet connection
Date: Thu, 9 Sep 2004 17:00:53 +0100
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On Thu, Sep 09, 2004 at 11:02:18AM -0400, Jason Opperisano wrote:
> On Thu, 2004-09-09 at 10:40, Giancarlo Boaron wrote:
> > Ok. I made my iptables script and I forgot to handle
> > the DHCP protocol. So, my firewall box gets its IP
> > address via DHCP. Thats a nice thing to test.
> 
> for the sake of the list archives:
> 
>   # DHCP server -> client
>   iptables -A INPUT -p udp --sport 67 --dport 68 -j ACCEPT
> 
>   # DHCP client -> server
>   iptables -A OUTPUT -p udp --sport 68 --dport 67 -j ACCEPT

Not wishing to be paranoid, buuuuuuuuutttttttt..... couldn't you
usefully restrict those by source and destination IP?

-- 
mors omnia vincit