How do I factory default a nortel passport 1648t?

There are two main methods to return a Cisco router to its original factory defaults. These two methods are described below.
Method 1
1. uses the config-register 0x2102 command in global configuration mode.
2. Check the configuration register on the router by issuing the show version command.
3. The configuration register setting is displayed in the last line of the show version command output and should be set to 0x2102. If this is not the case, enter the config-register 0x2102 command once in global configuration mode.
router#configure terminal
router(config)#config-register 0x2102
router(config)#end
router#
4. If the show version command is issued again, the same line in the command output will have '(will be 0x2102 at next reload)' appended to the current register setting.
5. Erase the current start-up configuration on the router with the write erase command.
Reload the router with the reload command. When prompted to save the configuration, DO NOT save.
router#reload
System configuration has been modified. Save? [yes/no]: n
Proceed with reload? [confirm]
Once the router reloads, the System Configuration Dialog appears.
--- System Configuration Dialog ---
Would you like to enter the initial configuration dialog? [yes/no]:
The router is now reset to the original factory defaults.
Method 2
1. uses the config-register 0x2142 command in global configuration mode.
2. Enter the config-register 0x2142 command in global configuration mode.
router(config)#config-register 0x2142
This causes the router to ignore the start-up configuration on the next reload. If a show version is issued, the last line in the command output will have '(will be 0x2142 at next reload)' appended to the current configuration register setting.
3. Reload the router using the reload command in enable mode. It is not necessary to save when prompted to save the system configuration.
router#reload
System configuration has been modified. Save? [yes/no]: n
Proceed with reload? [confirm]
After the router has reloaded, the System Configuration Dialog appears.
4. Enter no to the question "Would you like to enter initial configuration dialog?"
5. Change the configuration register setting to 0x2102 by entering the config-register 0x2102 command once in global configuration mode.
6. Issue the write memory command in enable mode to overwrite the existing start-up configuration with the current running configuration.
7. Reload the router with the reload command in enable mode.
Once the router reloads, the System configuration Dialog appears.
--- System Configuration Dialog ---
Would you like to enter the initial configuration dialog? [yes/no]:
The router is now reset to the original factory defaults.
Note: The configurations below are stored in ROMMON, and cannot be reset to Factory Default Settings by the write erase or config-register 0x2142 commands.
warm-reboot
memory-size iomem <not default>

follow this step

KIMIA# delete
startup-config Delete startup configuration (Reboot from defaults)
flash:// Delete a file from the flash (flash://filename)
WORD Specify name of file
KIMIA# delete startup-config
<cr>

KIMIA# delete startup-config
Delete startup-config [y/n]? y
Startup file was deleted
KIMIA#

User Name:manager
Password:friend

console#
console#

Do the factory reset and change the password from the default, unless an administrator's handling it for you.

There is probably a reset button somewhere on the device, it is probably a small pinhole that you put a paper-clip into the reset.
If it has its own http web page, there is likely a reset to factory defualts option.

The ip of the computer connecting to it should not change.
On a computer connected to it, open cmd start>run then type in cmd, and type 'ipconfig'.
It will display details about your connection. Where it says 'default gateway' is the ip of the device.
You could try to put the ip in your browser and see if the device has a web page.

try using


show sys info -- 'll display version
show sys perf -- 'll display cpu and memory utilization.

Hello
You can turn any router into a switch by disabling the DHCP server on the router. Now as far as being able to get an IP for a machine, there must be a gateway device on the network whether that is a computer, router or FW appliance that DHCP IP(s) or static IP(s) can be used by the switch. You want to the machines on the router (now a switch) not accessible, then you change the subnet on the router (now a switch) to be a different subnet mask than the gateway device.

The principles for making a router a switch and using it are the same no matter if it's a wire or wireless router or brand name being used.

If you want to use two routers with each using their own DHCP and subnets, then you connect routers together taking the WAN port of the second router and plug it into the Uplink port of the gateway router or FW appliance if the device has an Uplink port.

Hope it will help, if so do rate the solution

Add a computer to your network, and install Microsoft Windows Server on that computer, and enable its "DHCP-server" component. Then, this computer will supply IP-addresses for all the other computers connected to your switch.

The switch is _NOT_ a DHCP-server; therefore, you need to add a DHCP-server.

Show config is used to check the configuration of running config!!!

This is all i could find
Nortel Norstar Modular ICS Any **ADMIN (**23646) ADMIN (23646) Nortel Norstar Modular ICS Any **CONFIG (266344) CONFIG (266344)

Log in to the switch as an administrative user (using the login command).

You can type the following command:

reset {config|system}

If you type "reset config" all of the factory default settings are restored on the switch except for the IP address, user
accounts, and the switch history log.

If you type "reset system" all of the factory default settings are restored on the switch.

If you just type "reset" by itself, the switch’s current IP address, user accounts, and switch history log are retained. All other
parameters are restored to their factory default settings.