Patton electronics SmartNode Series - Release or Renew a DHCP Lease Manually (Advanced); Get Debug Output from DHCP-Client

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DHCP-client configuration tasks 294

SmartWare Software Configuration Guide 27 • DHCP configuration

Release or renew a DHCP lease manually (advanced)

After enabling the DHCP-client, the interface receives a DHCP lease from the DHCP-server. To manually

release and/or renew this DHCP lease use the command described below.

This procedure describes how to release and renew the DHCP lease

Mode: interface

Note If you are connected by Telnet over the IP interface on which you release the

DHCP lease, the connection is lost after entering the command

dhcp-client

release

. You need an other way (e.g. a serial connection) to connect to the

SmartNode again and to enter the command

dhcp-client renew!

Get debug output from DHCP-client

This procedure describes how to enable/disable DHCP-client debug monitor

Mode: Any

Example: Enable DHCP debug monitor

This example shows how to enable the DHCP-client debug monitor and the debug output of the command

dhcp-client release and dhcp-client renew.

node(cfg)#context ip

node(ctx-ip)[router]#interface eth0

node(if-ip)[eth0]#debug dhcp-client

node(if-ip)[eth0]#dhcp-client release

01:12:28 DHCPC > router/eth0 (Rels): Unicasting DHCP release (xid 490cb56b, secs

1).

01:12:29 DHCPC > router/eth0 (Rels): Shutting down.

01:12:29 DHCPC > router/eth0 (Rels): Tearing down IP interface

2001-01-01T01:12:30 : LOGINFO : Link down on interface eth0.

2001-01-01T01:12:30 : LOGINFO : Link up on interface eth0.

node(if-ip)[eth0]#dhcp-client renew

01:17:46 DHCPC > router/eth0 (Init): Tearing down IP interface

01:17:46 DHCPC > router/eth0 (Init): Broadcasting DHCP discover (xid 0f839e56, secs

0).

01:17:46 DHCPC > router/eth0 (Init): Requesting IP address 172.16.224.102

01:17:47 DHCPC > router/eth0 (Slct): Got offer from 172.16.1.10 for IP

172.16.224.102

01:17:47 DHCPC > router/eth0 (Slct): Selected offer for 172.16.224.102

01:17:47 DHCPC > router/eth0 (Slct): Broadcasting DHCP request (select) (xid

6ff42c38, secs 1).

Step Command Purpose

1 node(if-ip)[name]#dhcp-client release Releases DHCP lease. (See note)

2 node(if-ip)[name]#dhcp-client renew Gets a new DHCP lease from the DHCP-server

Step Command Purpose

1 node(if-ip)[name]#[no] debug dhcp-client Enables/disables the DHCP-client debug monitor

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Patton electronics SmartNode Series - Release or Renew a DHCP Lease Manually (Advanced); Get Debug Output from DHCP-Client

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