[Dnsmasq-discuss] Problems With Windows Vista

[Simon Kelley]

Jeremy M wrote:
> You were exactly right.  The firewall was blocking outbound broadcast 
> packets on the subnet.  I'm not sure if this is correct, but my config 
> specifies:
> 
>     
> dhcp-range=wireless,192.168.3.50,192.168.3.250,255.255.255.0,192.168.3.255,12h
> 
> I think that's saying the broadcast address should be 192.168.3.255, but 
> broadcasts attempts are actually going out on 255.255.255.255.
> 
> 

255.255.255.255 is always a valid broadcast address on IP networks, and 
the correct one to use for DHCP.

255.255.255.255 = limited broadcast address, propogates only on one 
network segment.

192.168.3.255 = network broadcast address. May be routed to other 
network segments be suitably configured routers.

I'm glad that's fixed. Probably worth a FAQ entry!

Cheers,

Simon.