How do I change the system's IP address


To change the system's IP address you need to do the following:

1.  Verify the new IP address is unused.

    If you use /etc/hosts for host to IP address mapping, run
    "grep <IP address> /etc/hosts" to check the address is available.

        # grep 192.168.55.101 /etc/hosts
	#

    If you use NIS, run "ypmatch <IP address> hosts.byaddr".

        # ypmatch 192.168.55.101 hosts.byaddr
        Can't match key 192.168.55.101 in map hosts.byaddr.  Reason: no such key in map.

    If you use DNS, run "nslookup <IP address>".

        # nslookup 192.168.55.101
        Server:  ns.ccur.com
        Address:  192.168.55.1
        
        *** ns.ccur.com can't find 192.168.36.158: Non-existent domain
        #

    Also, you should run "ping <IP address>" to make sure the address is not
    in use.

        # ping 192.168.55.101
        UX:ping: INFO: no answer from 192.168.55.101

 
2.  Update the system's entry in /etc/hosts with the new IP address.

    contents of /etc/hosts

	...
	#192.168.55.99  oddjob	    <--- old entry
	192.168.55.101  oddjob      <--- new entry
	....

    If /etc/hosts is used for host to IP address mapping you will need to
    update the /etc/hosts files of all the other systems.

    If NIS or DNS is used you will need to update their information as well.


3.  Check the /etc/confnet.d/inet/interface file.

        #
        # Loopback interface
        #
        lo:0:localhost:/dev/loop::add_loop:
        #
        # Additional network interfaces
        #
        #ie:0:192.168.55.99:/dev/ie0:netmask 255.255.255.0 arp::  <--- needs update
        #ie:0::/dev/ie0:netmask 255.255.255.0 arp::               <--- okay
        ie:0:oddjob:/dev/ie0:netmask 255.255.255.0 arp::          <--- okay

    If the third field for your system's primary interface is an IP address,
    then update that value.  If the third field is the name of your system or
    blank, then the system will use the new IP address after you reboot.


4.  Reboot the system.

	# init 6
	....


5.  Update your Elan Licenses.

    If you have products such as NightView, NightProbe, NightSim, NightTrace,
    or NightTune which use the license keys under /usr/lib/powerworks_licenses
    they will not work after the system's IP address has changed.  To get new
    licenses you will have to contact software distribution at 1-800-666-5405.
    Please have your site ID when you contact them and they will provide you
    with the new licenses.


For more information see hosts(4), ypmatch(1), nslookup(1), interface(4), and
elmadmin(1).