multiple interfaces

Simon Hobson dhcp1 at
Wed Nov 5 10:07:22 UTC 2008

Tom Schmitt wrote:

>I'm using dhcp v 3.1.1 on a server with several network-interfaces. 
>I want the dhcpd only to use one of these interfaces.
>Of course I can type the name of the interface on the command line 
>when I invoke the dhcpd, but I would really like to do this via the 
>Is there any possibility to define the networkinterface in the 
>dhcpd.conf? I couldn't find anything in man dhcpd.conf.

No, the command line method is the only way. But bear in mind that 
many Linux distributions provide a way to do this - for example, in 
Debian, you can put a list of interfaces in 

However, depending on your needs, it might be possible to fudge it. 
If you are able to run a dhcp server on the other networks, then you 
can simply define a subnet for each interface and then specify 
"ignore booting" in the subnet declaration. The server will still 
start up on those interfaces, but it will simply ignore all packets 

Simon Hobson

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