DHCP lease under SuSE is not working., limited at 10 minutes Post: 302533153

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Special Forums IP Networking DHCP lease under SuSE is not working., limited at 10 minutes Post 302533153 by aixlover on Wednesday 22nd of June 2011 09:37:25 PM

06-22-2011

Registered User

DHCP lease under SuSE is not working., limited at 10 minutes

Hi,

I got a strange issue here: We are using ISC DHCP v4 which is default in Open SuSE 11.4. These two options 'default-lease-time' and 'max-lease-time' are set in all subnets, with values between 43200 (12 hours) to 518400 (144 hours). See partial dhcpd.conf below please.

Now the lease time from Windows client's ipconfig output is only 10 minutes. Why? (dhcpd on servers restarted many times. ipconfig /release, ipconfig /renew on client run many times)

Please help. Thank you much in advance!

Code:

lease-file-name "/etc/dhcpd.leases";
default-lease-time 43200;  # 12 hours
max-lease-time 86400;      # 24 hours
one-lease-per-client true;

subnet 10.1.1.0 netmask 255.255.255.0 {
pool {
   failover peer "failover";
   range 10.1.1.100 10.1.1.200;
   deny dynamic bootp clients;
}
   option subnet-mask 255.255.255.0;
   option broadcast-address 10.1.1.255;
   option routers 10.1.1.1;
   default-lease-time 86400;
   max-lease-time 518400;
}

aixlover

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LEARN ABOUT HPUX

auto_parms

auto_parms(1M)															    auto_parms(1M)

NAME

       auto_parms - initial system configuration plus DHCP support command

SYNOPSIS

DESCRIPTION

       The  command is a system initialization command that handles first-boot configuration, that is, the setting of unique system "initial iden-
       tity parameters", and ongoing management of DHCP lease(s).  The command is invoked at boot time by the command.	Initially it loads a  list
       of  available ethernet interfaces and requests a DHCP lease on each interface.  See the rc(1M) manpage for information about for invocation
       context.

       While checking for availability of a lease on each interface, also consults and examines the variable If it is  set  to	"1",  attempts	to
       request a lease on the the interface designated by If is set to "0" (the default case) or is absent from does not attempt a DHCP request on
       that interface.

       Once a lease is secured, the information supplied with the lease is used to initialize key networking parameters; see dhcpdb2conf(1M).

       If detects that the system is undergoing "first-boot" (meaning the system's hostname is not yet set), it invokes to  verify  the  DHCP-sup-
       plied parameters and to collect any parameters not supplied by DHCP.

       For  all  subsequent  boots,  the data supplied by a DHCP lease is assumed by to be correct.  Note that in a (non-mobile) environment where
       DHCP is used for IP address management, under normal conditions the lease information should not change between reboots.   This	is  accom-
       plished by placing in "lease maintenance mode" prior to exiting.

FILES

       The command itself.

       Common subroutines used by
				and sub-area commands.

       Log files written and saved by

       AUTHOR
	      The command was developed by HP.

SEE ALSO

       dhcpdb2conf(1M), rc(1M), set_parms(1M).

																    auto_parms(1M)