First, do you have executive level priveleges? Does your command prompt end with a > or a #? You need the # prompt to configure the switch. Type "enable" (ena will do) and hit enter. If the switch wants a password, you will have to perform a password recovery procedure on the switch. Go to www.cisco.com and do a search on "2900 password recovery" for assistance. If you don't need that, issue a "show run" command to see the current operating configuration. Use the space bar to advance through the configuration a page at a time. Hitting "enter" moves you a line at a time. Any other key stops the display. Look for the interface that has an IP address assigned to it...my guess is it will be interface VLAN1. Once there, go into configuration mode by typing in "config t". Your display will change to show you in config mode. Then type in the interface you want to change ("int VLAN1") and hit return. The display will change again to show a (config-if) by the command prompt. As the previous respondent stated, remove the old address by typing in "no ip address 192.168.1.100 (subnet mask for the address)". Then add the new address by typing "ip address (new ip address and subnet)". To exit configuration mode, hit CTRL - Z (not CTRL - C). Then type in "copy run start". The switch should prompt you to reply yes to "copy running-configuration to startup-configuration?" That should do it. BTW, most cisco devices have context-sensitive help. You can type a ? at the command prompt and see what commands are available at that level. By typing in the command, you can get more information on what fields are used. If this still isn't working, bring up the configuration, copy it to your PC and e-mail it to me and I'll help you get it going. Use a phony IP address for your protection, but keep the subnet mask the same one you want to use. My e-mail is chris.kilday@ctg.com. Best wishes.
- ck
