From: darbyweaver@yahoo.com
Date: Sat May 13 2006 - 01:54:37 ART
ip ddns update hostname 
To enable a host to be used for Dynamic Domain Name System (DDNS) updates of address (A) and pointer (PTR) Resource Records (RRs), use the ip ddns update hostname command in interface configuration mode. To disable the dynamic updates, use the no form of this command. 
ip ddns update hostname hostname 
no ip ddns update hostname hostname 
The following example shows how to configure the testhost host to update A and PTR RRs: 
interface ethernet1/0
 ip ddns update hostname testhost
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hiad_r/adr_i1h.htm#wp1172250
Related Commands
====================
   
debug dhcp 
 Displays debugging information about the DHCP client and monitors the status of DHCP packets. 
 
debug ip ddns update 
 Enables debugging for DDNS updates. 
 
debug ip dhcp server 
 Enables DHCP server debugging. 
 
host (host-list) 
 Specifies a list of hosts that will receive DDNS updates of A and PTR RRs. 
 
ip ddns update method 
 Specifies a method of DDNS updates of A and PTR RRs and the maximum interval between the updates. 
 
ip dhcp client update dns 
 Enables DDNS updates of A RRs using the same hostname passed in the hostname and FQDN options by a client. 
 
ip dhcp-client update dns 
 Enables DDNS updates of A RRs using the same hostname passed in the hostname and FQDN options by a client. 
 
ip dhcp update dns 
 Enables DDNS updates of A and PTR RRs for most address pools. 
 
ip host-list 
 Specifies a list of hosts that will receive DDNS updates of A and PTR RRs. 
 
show ip ddns update 
 Displays information about the DDNS updates. 
 
show ip ddns update method 
 Displays information about the DDNS update method. 
 
show ip dhcp server pool 
 Displays DHCP server pool statistics. 
 
show ip host-list 
 Displays the assigned hosts in a list. 
 
update dns 
 Dynamically updates a DNS with A and PTR RRs for some address pools. 
This archive was generated by hypermail 2.1.4 : Thu Jun 01 2006 - 06:33:21 ART