Jason...what I did instead of telling it not to bind (I couldn't find a
directive, either) was to tell IPtables to only accept port 67 connections
on my internal interface, eth1:
iptables -A INPUT -i eth1 -p udp -m udp --dport 67 -j ACCEPT
iptables -A INPUT -i eth1 -p udp -m tcp --dport 67 -j ACCEPT
On Fri, 8 Feb 2002, Jason Costomiris wrote:
> This afternoon's project was to build a masq'ing firewall, complete
> with DHCP, split DNS, and all the trimmings. Got it done, but I'm
> having a bit of a difficult time with telling the ISC dhcpd 3.0
> (out of Rawhide) to stop binding to my external i/f.
>
> I don't have a subnet{ } section that covers the particular subnet in
> question, so the syslog informs me that because I don't mention anything
> about the subnet on that i/f (in my case, eth0), it will not respond to
> queries on the interface. That's good and all, but netstat reveals this:
>
> udp 0 0 0.0.0.0:67 0.0.0.0:*
>
> So, even though it's not responding to queries on that eth0 interface, it's
> still binding the port to the interface. Thoughts on how to get it to stop
> behaving like this?
>
>
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