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Top Forums UNIX for Beginners Questions & Answers Changes in dhcpd.conf do not make a difference in DHCP service behaviour Post 303031966 by stomp on Friday 8th of March 2019 08:04:48 AM
Old 03-08-2019
Quote:
Is the subnet declaration supposed to be in same network as the IP 10.210.148.7 ? I dont think so. The DISCOVER is received via 172.17.126.195/194 and those IPs are in the defined network declaration in dhcpd.conf. A request is received from a defined network, so there should be an offer for it.
I'm not quite sure, but I would assume - according to the log entries - the listening interface should have at least an empty(=no leases) subnet declaration since the server is ignoring the interface and is exiting without one. Better check it yourself in the dhcpd manpage/documentation.

But if the dhcp server is actually getting the relayed dhcp/bootp requests my concern maybe not relevant.

--- Post updated at 02:04 PM ---

Maybe it is an option to run the dhcpd-server in foreground(-d) to check what configuration is active and what is going on. And to be sure the daemon is restarted at configuration changes.

Last edited by stomp; 03-08-2019 at 09:16 AM..
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DHCLIENT.LEASES(5)					      BSD 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 database 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 occurrence. The lease file is named dhclient.leases.IFNAME, where IFNAME represents the network interface the DHCP client acquired the lease on. For example, if dhclient(8) is configured for the em0 network device, the lease file will be named dhclient.leases.em0. The format of the lease declarations is described in dhclient.conf(5). FILES
/var/db/dhclient.leases.IFNAME Current lease file. SEE ALSO
dhclient.conf(5), dhcp-options(5), dhcpd.conf(5), dhclient(8), dhcpd(8) RFC 2132, RFC 2131. AUTHORS
The dhclient(8) utility was written by Ted Lemon <mellon@vix.com> under a contract with Vixie Labs. The current implementation was reworked by Henning Brauer <henning@openbsd.org>. BSD
January 1, 1997 BSD
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