Problem with shared-network

[Bob Harold]

On Thu, Jun 4, 2015 at 1:38 PM, <robert at spotswood-computer.net> wrote:

> <aside>I use ignore rather than deny to keep my logs cleaner. Deny logs
> every attempt. The ignore just ignores. And yes, I realize mac filtering
> can be easily defeated by a knowledgeable opponent. A weak attempt at
> security is not my purpose for using mac lists.</aside>
>
> I did not have pools. Now I do. Unfortunately, I still get the same
> behavior. Just for kicks, I reversed the order of the subnets, and to my
> surprise, still got the same behavior, except now the 192 subnet still
> works. So the pools helped. This makes me believe the problem is the 10
> subnet declaration.
>
> I removed the 192 subnet and the shared-network and just left the 10
> subnet. When I attempted to restart the DHCP server, I got the no subnet
> declaration for eth0 and it exited. Adding eth0:1 to both the command line
> and /etc/defaults/isc-dhcp-server did not change the result, only the
> error message: "No subnet declaration for eth0:1 (No IPv4 addresses)"
>
> DHCP needs the 192 subnet to be defined.  It does not need to have a
range, or any options, it can be an empty definition, but if it is not
defined, it will ignore that interface.



> So despite the shared-network statement, the DHCP server still doesn't
> recognize virtual interfaces??? Can this be right?
>
>
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