All you have to do is get into the Cisco675/678 using HyperTerminal. Once connected Hit enter and that should let you in. At the password, put in the password and hit enter and you should be at a CBOS> prompt.
Type the commands below: (after each line hit enter)
enable
(at the password prompt hit enter)
(you should now be at a CBOS# sign ; that is enable mode)
set nvram erase
write
reboot
(at the Hello hit enter, at the password hit enter)
enable
(at the password prompt hit enter)
(you should now be at a CBOS# sign ; that is enable mode)
set ppp wan0-0 ipcp 0.0.0.0
set ppp wan0-0 subnet 0.0.0.0set ppp wan0-0 dns 0.0.0.0
set ppp wan0-0 login (your-user-id-here)
set ppp wan0-0 password (your-password-here)
set int vip0 address (pick one of the usable ip's here)
set int vip0 netmask (your netmask here)
set ppp restart enable
set nat enable
set web disable
set web port 9999
set web remote 127.0.0.1
set dhcp server enable
set password exec (your-password-here)write
set int wan0-0 disable
write
set interface wan0-0 vpi 0
set interface wan0-0 vci 32
set interface wan0-0 enable
write
reboot
Now when you are prompted for the password you will have to type your password.