[Dnsmasq-discuss] Dnsmasq DHCP Server Doesn't Work

[Simon Kelley]

Gabriel A. Devenyi wrote:

> 
> Alright, so I disabled my firewall, and now it works, this confuses me, as I've not restricted the lan interface in any way
> (at least as far as I understand) attached is my firehol configuration, anyone see where I'm going wrong?
> 
> 
> 
> 
> ------------------------------------------------------------------------
> 
> #FIREHOL_LOG_LEVEL=7
> lan_ips="192.168.1.1/24"
> 
> dnat to 192.168.1.2 proto tcp dport 32770
> dnat to 192.168.1.2 proto udp dport 32770
> 
> transparent_squid 3128 "squid root ace" inface eth0 src 192.168.1.1/24
> 
> interface eth0 lan src "${lan_ips}"

I'd guess this might be a problem: an unconfigured host doing DHCP will 
broadcast packets with a source address of 0.0.0.0.

In general it's worth looking directly at the iptables rules generated 
by this stuff. You need to be able to recieve packets sent to 
255.255.255.255 and packets sent from 0.0.0.0, as well as the more 
obvious things.


Cheers,

Simon.