> I picked up an iptables firewall and I have a question in debugging
> it.  It erroneously makes reference to two variables which are not
> defined: These are BROADCAST_0 and BROADCAST_1.  I'm running dhcpcd
> as the firewall prescribes.  My problem is that I just don't have
> any idea what the intent is of the first four iptables commands.
> I found ports 67 and 68 in my /etc/services file as bootps and
> bootpc (which I assume are used somehow by the DHCP protocol).


Check this:

  http://tangentsoft.net/ix/scripts/firewall-enable

Aren't there two IP broadcast addresses?
One consisting of all zeroes and the other all ones?


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