[CentOS] Centos 7 dhcpd failure to allow a 2nd network over same interal nic

Everyone,

I am trying to set up a second internal network  (192.168.0.0/24) and
have not been able to get dhcp to start when I have the following in my
dhcpd.conf file :

subnet 192.168.0.0 netmask 255.255.255.0 {
        range 192.168.0.110 192.168.0.130;
        option subnet-mask 255.255.255.0;
        option broadcast-address 192.168.0.255;
        option routers 192.168.0.1;
        option domain-name-servers 192.168.0.1;
}

When i remove the above from dhcpd.conf dhcpd works perfectly

I have my internal nic card set with two ip addresses one of which is
192.168.0.1. the other address is my standard internal network address.

I have also set up the domain server to allow access from
192.168.0.0/24, and the firewall allows internal access to the same
subnet.

The error that I get is the following :

Job for dhcpd.service failed because the control process exited with error code. See "systemctl status dhcpd.service" and "journalctl -xe" for details.

When I evaluate journalctl -xe the following is obtained :

dhcpd[18763]: Internet Systems Consortium DHCP Server 4.2.5
dhcpd[18763]: Copyright 2004-2013 Internet Systems Consortium.
dhcpd[18763]: All rights reserved.
dhcpd[18763]: For info, please visit https://www.isc.org/software/dhcp/
dhcpd[18763]: Not searching LDAP since ldap-server, ldap-port and
ldap-base-dn were not specified in the config file
dhcpd[18763]: Internet Systems Consortium DHCP Server 4.2.5
dhcpd[18763]: Copyright 2004-2013 Internet Systems Consortium.
dhcpd[18763]: All rights reserved.
dhcpd[18763]: For info, please visit https://www.isc.org/software/dhcp/
dhcpd[18763]: Wrote 0 deleted host decls to leases file.
dhcpd[18763]: Wrote 0 new dynamic host decls to leases file.
dhcpd[18763]: Wrote 2 leases to leases file.
dhcpd[18763]: Interface enp0s29u1u2 matches multiple shared networks
dhcpd[18763]: 
dhcpd[18763]: This version of ISC DHCP is based on the release available
dhcpd[18763]: on ftp.isc.org.  Features have been added and other
changes
dhcpd[18763]: have been made to the base software release in order to
make
dhcpd[18763]: it work better with this distribution.
dhcpd[18763]: 
dhcpd[18763]: Please report for this software via the CentOS Bugs
Database:
dhcpd[18763]:     http://bugs.centos.org/
dhcpd.service: main process exited, code=exited, status=1/FAILURE
dhcpd[18763]: 
systemd[1]: Failed to start DHCPv4 Server Daemon.

When I review the information about dhcpd it appears that it can manage
the ip addresses for two networks on different nic cards, but is there a
problem in having it manage two networks on the same nic card?

Does anyone have any ideas?  Would sure appreciate your help.

Greg Ennis



-- 
Greg Ennis
PoMec Corporation
www.PoMec.Net