If you lost root password or router OS dose not work normally (OS crashed), you may recovery OS or password under BOOT loader mode.
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Main function of BOOT LOADER
1. root password recovery/change
2. s/w downloading
Enter Bootloader mode>
After power reset or s/w reset, press ctrl-C and ctrl-X key alternately repeatedly, then you can see “BOOT#” prompt.
(设备通电后交替按ctrl-C and ctrl-X，进入"BOOT"模式 )
Note) Check password
BOOT#
Interface Ethernet0, changed state to UP
BOOT# show password (显示原始密码)
password = "router"
BOOT#
Note)
Change root password (If you want to change from "router" to "abcd")
BOOT# config
BOOT(config)# passwd abcd abcd
password changed
root password change command under APOS environment(not BOOT loader)?/b>
(If you want to change from “router” to “abcd”)
router(config)# show user
Login Name Password User Level Timeout
root abcd ADMIN 0
router# config
router(config)# user change root abcd router (更换成新密码)
router(config)# show user Login Name Password User Level Timeout
root router ADMIN 0
Note) Upgrade OS p_w_picpath via ftp/tftp under PC or UNIX environment.
ftp client : 192.71.192.2 (PC)
ftp server: 192.71.192.1 (router)
Note) router IP setting
(Notice : BOOTER don't refer configuration value of APOS environment.
BOOT# config
BOOT(config)# address 192.71.192.1 255.255.255.192
BOOT(config)# end
Note) IP address setting confirm
BOOT# show interface
Interface Configuration : ether0.0
IP address : 192.71.192.1 netmask : 255.255.255.192 mtu = 1500
Ethernet Address : 00 02 a4 99 99 01
Ethernet mode : FULL-DUPLEX
Operating speed : 100 Mbps
Line status : FULL DUPLEX
Operation is UP
Under APOS mode, application p_w_picpath downloading procedure is the same as BOOT mode.