03-07-2019
They are in same subnet. No issues at there.
I will copy the dhcpd.conf to /etc/dhcp/ directory too and try restarting the dhcpd service. I will check it but not much hope as the working ServerX was fine with the file /etc/dhcpd.conf.
We did the modification on this file /etc/dhcpd.conf but no changes on the behaviour as I mentioned in my first entry.
I didnt get the explanation of why could the server ignore the requests not coming from a defined set of addresses.
For the MAC addresses DISCOVERed in the incoming relayed packet, we have entries in dhcpd.conf and an OFFER should occur.
However, as I tried to explain, anything we do in dhcpd.conf doesnt make any change in DHCP behaviour.
Besides being unable to get OFFER for the new system, another important output is that we removed the entry for the working DHCP client in /etc/dhcpd.conf file but the DHCP server still providing OFFER to that server. I would expect that it starts to give error for the incoming DHCP requests since then.
Thanks a lot for your time by the way @bakunin
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LEARN ABOUT REDHAT
dhclient.leases
dhclient.leases(5) File Formats Manual dhclient.leases(5)
NAME
dhclient.leases - DHCP client lease database
DESCRIPTION
The Internet Software Consortium DHCP client keeps a persistent database of leases that it has acquired that are still valid. The data-
base is a free-form ASCII file containing one valid declaration per lease. If more than one declaration appears for a given lease, the
last one in the file is used. The file is written as a log, so this is not an unusual occurrance.
The format of the lease declarations is described in dhclient.conf(5).
FILES
/var/lib/dhcp/dhclient.leases
SEE ALSO
dhclient(8), dhcp-options(5), dhclient.conf(5), dhcpd(8), dhcpd.conf(5), RFC2132, RFC2131.
AUTHOR
dhclient(8) was written by Ted Lemon under a contract with Vixie Labs. Funding for this project was provided by the Internet Software
Consortium. Information about the Internet Software Consortium can be found at http://www.isc.org.
dhclient.leases(5)