Trouble getting dhcpd to run

[Ronan Mullally]

Hi Stuart,

I've a similar setup, however I'm not bridging wlan0 with eth0.  I do
however have a 4-port ethernet card which is running as a bridge.

In your /etc/conf.d/dhcpd file make sure you've got 'IFACE="br0"',
I think this should restrict the interfaces dhcpd tries to bind to
your bridge group.


-Ronan

On Fri, 13 Feb 2004, Stuart Luppescu wrote:

> I'm trying to add wireless capability to my Gentoo Linux based
> firewall/router. I added a Netgear MA311 PCI card to the router,
> installed the hostap package, configured ethernet bridging into the
> kernel. My plan was to bridge the wireless and wired networks into one
> internal LAN with the external ethernet interface connected to the DSL
> line, and have the Linux box do the firewalling/routing/NATing for both
> networks at once.
> 
> This seems to set up ok but I can't get dhcp to start for my wireless
> network. Here are the commands I run to get the
> bridged network up:
> 
> ifconfig eth0 down
> modprobe bridge
> modprobe hostap_pci
> iwconfig wlan0 essid SNL
> #Encryption stuff will go in here eventually
> brctl addbr br0
> brctl addif br0 eth0
> brctl addif br0 wlan0
> ifconfig eth0 0.0.0.0
> ifconfig wlan0 0.0.0.0
> ifconfig br0 192.168.1.1 up
> 
> I have this in my dhcpd.conf:
> 
> subnet 192.168.1.0 netmask 255.255.255.0 {
> ddns-updates on;
> range 192.168.1.100 192.168.1.164;
> }
> 
> But when I try and start dhcpd I get these messages:
> 
> Feb 13 18:42:58 brian dhcpd: Wrote 0 leases to leases file.
> Feb 13 18:42:58 brian dhcpd: 
> Feb 13 18:42:58 brian dhcpd: No subnet declaration for wlan0 (0.0.0.0).
> Feb 13 18:42:58 brian dhcpd: ** Ignoring requests on wlan0.  If this is
> not what
> Feb 13 18:42:58 brian dhcpd:    you want, please write a subnet
> declaration
> Feb 13 18:42:58 brian dhcpd:    in your dhcpd.conf file for the network
> segment
> Feb 13 18:42:58 brian dhcpd:    to which interface wlan0 is attached. **
> Feb 13 18:42:58 brian dhcpd: 
> Feb 13 18:42:58 brian dhcpd: 
> Feb 13 18:42:58 brian dhcpd: Not configured to listen on any interfaces!
> 
> I even put in 0.0.0.0 in the network segment instead of 192.168.1.0, but
> that didn't result in anything different. 
> 
> I've been using Linux for nearly 9 years but have never used dhcp. This
> has got me stumped. Can anyone give me some advice?
> 
> Thanks.
> -- 
> Stuart Luppescu -=- s-luppescu .at. uchicago.edu        
> University of Chicago -=- CCSR 
> ???????????????? -=-    Kernel 2.6.1-gentoo                
> I THINK THEY SHOULD CONTINUE the policy of not
>  giving a Nobel Prize for paneling.   -- Jack
>  Handley, The New Mexican, 1988. 
>  
>