[pkg-dhcp-devel] Bug#590641: isc-dhcp-server: DHCP server fails to start if the subnet is not the primary subnet for a device.

Fabien C. 6odprr3222prfwx at jetable.org
Sun Jul 29 12:47:33 UTC 2012

Severity: important 


I confirm this bug is still present on Squeeze. 

# ip addr show 
10: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP 
    link/ether 00:08:a1:95:f0:3b brd ff:ff:ff:ff:ff:ff
    inet brd scope global br0
    inet scope global br0


 No subnet declaration for br0 (
 ** Ignoring requests on br0.  If this is not what
    you want, please write a subnet declaration
    in your dhcpd.conf file for the network segment
    to which interface br0 is attached. **

 Not configured to listen on any interfaces!

But I have a subnet declaration for : 

subnet netmask

Trying to add a label to the interface and launch dhcpd on this labeled 
interface like this doesn't resolve the problem: 

ip addr add label br0:1 broadcast dev br0 
ifconfig br0:1 

Then it would say: 
dhcpd: No subnet declaration for br0:0 (no IPv4 addresses)

Fabien C. 

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