VLANs are your friend, otherwise DHCPD is not going to understand how to properly answer your request for different networks on the same interface. ----- On 14 Jan, 2017, at 11:59, Gregory P. Ennis PoMec at PoMec.net wrote: | 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 | | | _______________________________________________ | CentOS mailing list | CentOS at centos.org | https://lists.centos.org/mailman/listinfo/centos -- James A. Peltier IT Services - Research Computing Group Simon Fraser University - Burnaby Campus Phone : 604-365-6432 Fax : 778-782-3045 E-Mail : jpeltier at sfu.ca Website : http://www.sfu.ca/itservices Twitter : @sfu_rcg Powering Engagement Through Technology