Who Is “The Frickin Awesome Router”?

The Cisco 4451-X Integrated Services Router (ISR) is a modular router with LAN and WAN connectivity and supports several interface modules, including Cisco Service Modules (SMs), or Enhanced Service Modules (SM-X), and Network Interface Modules (NIMs). The router has slots that support the interface modules and modular Solid State Drives (SSDs).

The Cisco ISR 4451-Xs target the following applications:

• Enterprise applications—Intended as the mid-size aggregation and gateway router typically residing in a regional or large branch office:

–WAN aggregation at Cisco Enterprise core

–Internet gateway

–Branch or regional office aggregation

–Remote access aggregation

• Service provider applications—Intended for high-end Enterprise Branch environments.:

–High-end customer premises equipment (CPE) for business-quality Internet access

–Service provider leased line aggregation

–Provider edge (PE) and high-end customer edge (CE) for Layer 2 VPN or Layer 3 VPN services

–Broadband aggregation—PPPoE/PPPoA aggregation and Service Selection Gateway (SSG)

–Low-end Ethernet aggregation

The Cisco ISR 4451-Xs provide the following capabilities:

•Two single-wide SM slots that may be combined into one double wide SM slot.

•Three single-wide NIM slots that may combined into one double wide (NIM1 and NIM2) and one single wide NIM slot (NIM3). The slots can also support a modular or optional SSD.

•NIM3 slot also functions as a special hard drive carrier slot.

•1 10/100/1000 RJ-45 Ethernet port for system managements (labeled "GE 0" with "MGMT" on the left of the connector)

•2 USB 2 Type A host ports

•1 USB mini-TypeB Console (placed next to the RJ45 Console port)

•1 RJ45 Console

•1 RJ45 AUX port with full modem control signals

•4 10/100/1000 RJ-45 Ethernet ports (labeled GE 0/0/0, 0/0/1, 0/0/2, and 0/0/3)

•4 100/1000 SFP Ethernet ports (labeled SFP 0/0/0, 0/0/1, 0/0/2, and 0/0/3)

•LEDs for Ethernet and console status

•LEDs for SATA hard disk drive activity and status (available on certain models)

•Two DDR3 240 pin Control Plane DIMM slots which can be replaced

•One DDR3 240 pin Data Plane DIMM slot which can be replaced

•One compact flash slot, which is serviceable when the fan tray is removed

•One 30W PoE daughter card for two of the front Gigabit Ethernet ports which can be replaced (labeled GE 0/0/0 and 0/0/1)

•One Next Generation Voice Module (NGVM) providing IP Voice and video capability

•Environment monitoring

•Field replaceable fan tray

•Dual redundant power supply units (PSUs) and PoE PSU.

More Related:

CiscoBranch Routers, Accelerate Your WAN Performance

CiscoISR-AX: Cheaper Branch Router with Bundled Layer 4-7 Services

CiscoDelivers “Monster” Catalyst Switch, Routers for SDN Environments

Cisco ISR 4451-X, Prepared for FutureBranch Network Needs

Introducing The New Cisco ISR 4451-X Router

How to Reset a Cisco Router Back to Factory Defaults?

There are two main methods to return a Cisco router to its original factory defaults. These two methods are described below.

First Method

This method uses the config-register 0×2102 command in global configuration mode.

First check the configuration register on the router by issuing the show version command. The configuration register setting is displayed in the last line of the show version command output and should be set to 0×2102. If this is not the case, enter the config-register 0×2102 command once in global configuration mode.

router#configure terminal

router(config)#config-register 0x2102

router(config)#end

router#

If the show version command is issued again, the same line in the command output will have ‘(will be 0×2102 at next reload)‘ appended to the current register setting.

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.

Second Method

This method uses the config-register 0×2142 command in global configuration mode.

Enter the config-register 0×2142 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 0×2142 at next reload)‘ appended to the current configuration register setting.

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.

Enter no to the question “Would you like to enter initial configuration dialog?”

Change the configuration register setting to 0×2102 by entering the config-register 0×2102 command once in global configuration mode.

Issue the write memory command in enable mode to overwrite the existing start-up configuration with the current running configuration.

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.

More Related Cisco Network Hardware Topics:

How to Recover Password on the Cisco 2900Integrated Services Router?

How to Reset a Cisco 3900 Router?

How to Recovery Password on Cisco 1800Series Routers?

How to Recover Password on Cisco Router/Switch?

Password Recovery on Cisco 1242 AccessPoint

How to Protect Router Password?