LinuxQuestions.org - How to renegotiate leases of clients?

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How to renegotiate leases of clients?

Hello,

I have a dhcpd4.conf on Solaris 11

Code:

# dhcpd.conf

#

# Configuration file for ISC dhcpd

# (created by installadm(1M))

#



default-lease-time 360;

max-lease-time 720;



# If this DHCP server is the official DHCP server for the local

# network, the authoritative directive should be uncommented.

authoritative;



# arch option for PXEClient

option arch code 93 = unsigned integer 16;



# Set logging facility (accompanies setting in syslog.conf)

log-facility local7;



# Global name services

option domain-name-servers 192.168.11.10;





subnet 192.168.11.0 netmask 255.255.255.0 {

  range 192.168.11.40 192.168.11.41;

  option broadcast-address 192.168.11.255;

  option routers 192.168.11.1;

  next-server 192.168.11.29;

}



class "SPARC" {

  match if not (substring(option vendor-class-identifier, 0, 9) = "PXEClient");

  filename "http://192.168.11.29:5555/cgi-bin/wanboot-cgi";

}

When I boot the client for the first time, it got 11.41 address. When I boot the same client for the second time, it taked 11.42, not 11.41.

How to modify conf file to renegotiane addresses?

The default lease time is mentioned in seconds if I am not wrong. From the config you pasted it appears that the default lease time is 6 minutes (360 seconds) and the max lease time is 12 minutes (720 seconds). So if you want the system to retain the same IP for a longer period of time then increase default lease time and max-lease-time values and restart dhcp services on the server.