[Bug 242869] [NEW] dnsmasq's dhcp blocked to clients by firestarter

[want2bhere]

Public bug reported:

Binary package hint: firestarter

server: hardy, clients hardy.
In a situation where firestarter  is sharing the internet connection and act as a firewall, dnsmasq's dhcp server can not be reached by clients. Shutting down firestarter, all works fine, except the sharing of internet. Enable firstarter again, no dhcp.

The iptables rules decide that all destination traffic to
255.255.255.255 from source 0.0.0.0 (unknown) (even if the port is
67-68) will be dropped. (so no new dhcp requests)

The workaround was to add the following line to /etc/firestarter/user-
pre to explicitly allow the DHCP broadcasts early in the INPUT table:

$IPT -A INPUT -i $INIF -p udp -s 0.0.0.0 –sport 68 -d 255.255.255.255 –dport 67 -j ACCEPT 
(thanks Andrew)

But i think firestarter should solve this. All new dhcp  resolving is
done by sending packets to 255.255.255.255 from source 0.0.0.0.

I hope this helps.

Regards. ... ow.. and keep up the good work ;)

** Affects: dnsmasq (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: firestarter (Ubuntu)
     Importance: Undecided
         Status: New

** Also affects: dnsmasq (Ubuntu)
   Importance: Undecided
       Status: New

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dnsmasq's dhcp blocked to clients by firestarter
https://bugs.launchpad.net/bugs/242869
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