How do I reset my Cisco 4948 password?

How do I reset my Cisco 4948 password?

Program open and you just plug the power cord in while holding the mode. Button. And you have to hold it down for a few seconds. And then you’ll see this message in your terminal.

How do I reset my Cisco Catalyst 4948 switch?

From this mode hit return you’ll notice as erasing the nvram file system remove all content configuration files do you wish to continue. Hit return to confirm that says a race of nvram is complete.

How do I check my Rommon version Cisco 4500?

Step1: You can verify your current ROMMON using “show version” command as shown below. I have dual supervisor engine present in my chassis, so to verify standby supervisor engine ROMMON you can use “show module” command. We are upgrading ROMMON to 15.0(1r)SG7 to run VSS on it.

What is config register 0x2102?

The factory-default setting for the configuration register is 0x2102. This indicates that the router should attempt to load a Cisco IOS software image from Flash memory and load the startup configuration.

What is the default cisco username and password?

3. When the login page opens, enter the username and password. The default username is cisco. The default password is cisco.

How do you clear a switch configuration?

Clear the configuration of your switch

1. Log on. to your switch, and enter the privileged EXEC mode by entering enable and then entering the enable password command.
2. Enter clear config all to reset the. entire system. You don’t need to reload the switch because processing the. command wipes the switch.

How do I update my Cisco 4500?

Following is a brief overview of the upgrade steps:

• Load the new IOS image on to the Active Supervisor Engine (SE1)
• Copy IOS image to Standby Supervisor Engine (SE2)
• Configure Supervisor Engines to load the new image upon reboot.
• Set Configuration-Register variable to ensure newest image is loaded upon bootup.

How do I check my ROMmon version?

Checking the Current ROMmon Version

To display the version of ROMmon running on a router, use the show rom-monitor command or the show platform command.

What is configuration register is 0x2142?

Configuration register is 0x2142. In this example, the configuration register shows 0x2142. The router bypasses the startup configuration stored in NVRAM during its boot sequence. This feature is normally used during a password recovery procedure.

What is config register 0x2101?

Register setting 0x2101—Loads the IOS from ROM, and the NVRAM configuration is loaded into RAM as the running configuration. This is useful for performing IOS upgrades or if the flash IOS image is corrupted.

What is the cisco default IP address?

192.168.1.1
Most routers and switches by Cisco have default passwords of admin or cisco, and default IP addresses of 192.168. 1.1 or 192.168. 1.254. However, some differ as shown in the table below.

What is the default IP of cisco switch?

192.168.1.254
The switch uses the factory default IP address of 192.168. 1.254 by default.

What is the use of line Vty 0 4?

VTY is a virtual port and used to get Telnet or SSH access to the device. VTY is solely used for inbound connections to the device. These connections are all virtual with no hardware associated with them. The abstract “0 – 4” means that the device can allow 5 simultaneous virtual connections which may be Telnet or SSH.

How do I remove a vlan from a switch?

How to: Erase Vlan Data on Cisco Switches

1. Step 1: Remove the vlan. dat file. SW1#delete flash:vlan.dat.
2. Step 2: Clear Start up config ( Optional for Transparent Switches ) To make sure all Vlan data is removed clear the start up config as well with the following commands.

What is Rommon mode in Cisco?

The ROM Monitor (ROMMON) is a bootstrap program that initializes the hardware and boots the Cisco IOS XE software when you power on or reload a router. If your router does not find a valid system image to load when it is booting, the system enters the ROMMON mode.

How do I boot into Rommon mode?

In our case, config register is set correctly as 0x2102, I would suggest you to verify the boot variable. 1. When the switch gone into rommon, Issue the dir bootflash: command to list the files present in the bootflash, or issue the dir slot0: command to list the files present in the Compact Flash device.

What does Confreg 0x2142 do?

0x2142 tells the router to bypass the configuration in NVRAM so that you can perform password recovery.

What is config register 0x2142?

What is configuration register 0x8000?

Register setting 0x8000—Configures the router (2500,4000,7×00) and loads the router into diagnostic mode. Setting 0xA042 is used on 4500 and 4700 series routers. Register setting 0x2101—Loads the IOS from ROM, and the NVRAM configuration is loaded into RAM as the running configuration.

What is Cisco default password?

cisco
3. When the login page opens, enter the username and password. The default username is cisco. The default password is cisco.

What is Cisco switch default password?

Most routers and switches by Cisco have default passwords of admin or cisco, and default IP addresses of 192.168. 1.1 or 192.168. 1.254. However, some differ as shown in the table below.

How do I configure a switch?

1. Step 1: Inspect your hardware. Check the model number of your shiny new switch.
2. Step 2: Set up management IP.
3. Step 3: Check VTP revision number.
4. Step 4: Configure access ports.
5. Step 5: Configure trunk ports.
6. Step 6: Configure access ports.
7. Step 7: Set up VTY line config.

How do you configure an IP address?

Setting the IP address on your PC or mobile computer

1. Click Start >Settings >Control Panel.
2. On the control panel, double-click Network Connections.
3. Right-click Local Area Connection.
4. Click Properties.
5. Select Internet Protocol (TCP/IP), and then click Properties.
6. Select Use the Following IP Address.

What is the difference in line vty 0 4 and 5 15?

VTY lines are usually used for creating out-of-band management sessions to devices. If a password is not supplied on a vty line, that line cannot be used for managing the device. In some cases administrators may decide to let junior staff to use lines 0 – 4 and senior staff to use lines 5 – 15.

What is the meaning of Vty 0 15?

Lines 0 15 is vty lines 0, 1, 2 ,3 ,4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15. for example if you were type in global configuration mode, line vty 0 15 you will enter configuration for lines 0-15.