Questions on setting up dhcp.service for DHCP Sever for RHEL 8.1

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First time working with DHCP on RHEL 8.1 workstation

We are trying to assign IP addresses from this workstation to a number of servers and so far not having success.

Firewalld has been disabled.

When looking either at /var/log/messages or systemctl status dhcpd, I see that DHCP is only doing 1/2 of the process: DHCP Discover and DHCP Offer. Its not completing the other two DHCP Request and DHCP Ack.

I've gone thru Red Hat documentation Chp 43. Providing DHCP Services

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/configuring_and_managing_networking/providing-dhcp-services_configuring-and-managing-networking

I've copied over dhcpd.service from /usr/lib/systemd/system to /etc/systemd/system, which we didn't do before.

Under [Service] I've made an entry for the interface where DHCP is suppose to be listening from:

ensf00

I've restarted the DHCP Service, and now I'm not getting either DHCP Discover or DHCP Offer. All I'm seeing in /var/log/messages, is ignoring subnet declaration for other interfaces and server starting service.

My question is that typically all files under /etc/systemd/system are soft links back to /usr/lib/systemd/system service files, should I not create this soft link as well? There was nothing in the documentation about doing this.

Also I've checked the syntax of /etc/dhcp/dhcpd.service with the following command:

dhcpd -t -cf /etc/dhcp/dhcpd.conf


[user@foo system]$ sudo dhcpd -t -cf /etc/dhcp/dhcpd.conf
Internet Systems Consortium DHCP Server 4.3.6
Copyright 2004-2017 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
ldap_gssapi_principal is not set,GSSAPI Authentication for LDAP will not be used
Not searching LDAP since ldap-server, ldap-port and ldap-base-dn were not specified in the config file
Config file: /etc/dhcp/dhcpd.conf
Database file: /var/lib/dhcpd/dhcpd.leases
PID file: /var/run/dhcpd.pid
Source compiled to use binary-leases

Looks like there might be a bug:

https://bugzilla.redhat.com/show_bug.cgi?id=1831332

thanks

CM

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