Problem with shared-network

[Patrick Trapp]

I'm not an expert, but I have something like this and did a little digging. Documentation seems to indicate the allow/deny you are trying is a pool-level declaration, and that's where I'm using them successfully. You don't appear to have a pool defined unless it's part of what you snipped.

Oh, and they use allow/deny rather than allow/ignore, which may be pertinent. I certainly don't know all the options that work or don't.

Is it possible that what you want is something like

shared-network my-net {
        subnet 192.168.200.0 netmask 255.255.255.0 {
                pool {
                        deny unknown-clients;
                        range 192.168.200.194 192.168.200.200;
                } # pool declaration
        subnet #second subnet
                 pool { #second pool declaration }

________________________________________
From: dhcp-users-bounces at lists.isc.org [dhcp-users-bounces at lists.isc.org] on behalf of robert at spotswood-computer.net [robert at spotswood-computer.net]
Sent: Thursday, June 04, 2015 11:16 AM
To: dhcp-users at lists.isc.org
Subject: Problem with shared-network

I have a Debian 7.0 running isc-dhcp-server 4.2.2.

My server has a single NIC, and using iproute, I've added additional
addresses (some lines snipped for brevity):

eth0      Link encap:Ethernet  HWaddr 00:50:56:XX:XX:XX
          inet addr:192.168.220.111  Bcast:192.168.220.255
Mask:255.255.255.0

eth0:1    Link encap:Ethernet  HWaddr 00:50:56:XX:XX:XX
          inet addr:10.111.111.1  Bcast:10.255.255.255  Mask:255.255.255.0

My goal is for the dhcp server to hand out unknown clients addresses from
the 10.111.111.X pool, and known client to get something from the
192.168.220.X pool. Since these are on the same subnet, I [believe] this
requires a shared-network block. My dhcpd.conf file looks like (with
comments and global options stripped out for brevity):

shared-network my-net {
        subnet 192.168.200.0 netmask 255.255.255.0 {
                range 192.168.200.194 192.168.200.200;
                range 192.168.200.215 192.168.200.250;

                ignore unknown-clients;
  <bunch of options removed>
        } #subnet 192.168.200.0

        subnet 10.111.111.0 netmask 255.255.255.0 {
                range 10.111.111.5 10.111.111.200;
                allow unknown-clients;
<bunch of options removed>
        } #subnet 10.111.111.0
} #shared-network

It runs, but only gives out 192 addresses. If I reverse the order, so the
10 subnet declaration comes first, then it hands out 10 addresses, but not
192 addresses.

Any ideas what I am doing wrong?

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