1. Password recovery procedure:

 * Connect to the router using a RS-232 cable
 * Connect to the router via HyperTerminal. Settings for HyperTerminal = 9600 - 8 - None - 1 Flow Control = None
 * Power cycle the router and right away press the s key continuously until you see the login prompt >
 * User:manager; Password:friend

2. Disable security mode:

 disable system security_mode

3. Set IP Address:

 enable ip
 add ip interface=vlan1 ipaddress=192.168.1.1 mask=255.255.255.0
 # To change Address
 set ip interface=interface ipaddress=ipadd mask=ipadd

4. Enable GUI

 set gui=d9924e22.rsc
 enable gui
 show http server

5. Usefull commands

 show install
 show file
 show sys

6. Update firmware

 set loader method=tftp server=10.40.1.118 destination=flash
 load file=89276-02.rez
 show load