Cisco 1841, Hot Among Cisco 1800 Routers

The Cisco 1841 routeris designed for secure data connectivity and provides significant additional value compared to prior generations of Cisco 1700 Series routers by offering more than a fivefold performance increase and integrated hardware-based encryption enabled by an optional Cisco IOS Software security image.

The Cisco 1841 dramatically increase interface card slot performance and density over the Cisco 1700 Series while maintaining support for more than 30 existing WAN interface cards (WICs) and multiplex trunk cards (voice/WICs [VWICs]-for data only on the cisco 1841 IOS).

The Cisco 1841 router offers embedded hardware-based encryption enabled by an optional Cisco IOS Software security image; further enhancement of VPN performance with an optional VPN acceleration module; an intrusion prevention system (IPS) and firewall functions; interfaces for a wide range of connectivity requirements, including support for optional integrated switch ports; plus sufficient performance and slot density for future network expansion and advanced applications as well as an integrated real-time clock.

cisco 1841 specifications Product Details
Product Description	Cisco 1841 router
Device Type	Router
Form Factor	External - modular - 1U
Dimensions (WxDxH)	34.3 cm x 27.4 cm x 4.75 cm
RAM	128 MB (installed) / 384 MB (max) - SDRAM
Flash Memory	32 MB (installed) / 128 MB (max)
Data Link Protocol	Ethernet, Fast Ethernet
Network / Transport Protocol	IPSec
Remote Management Protocol	SNMP
Digital Signaling Protocol	ADSL over ISDN
Features	Cisco IOS IP Broadband , firewall protection, 128-bit encryption, hardware encryption, VPN support, VLAN support, Intrusion Prevention System (IPS), 256-bit encryption
Power	AC 120/230 V ( 50/60 Hz )
System Requirements	Microsoft Windows 98 Second Edition

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Notes: Router-switch.com is a World's Leading Cisco Supplier, founded in 2002. It sells new, used andrefurbished Cisco network equipment including Cisco routers 800/1800/1900/2800/2900/3800/3900 series, Cisco switches, Cisco Firewalls Security, Cisco IP Phones VOIP,etc.

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Cisco 1841 Details

Device Type：Router

Enclosure Type：Desktop - modular - 1U

Data Link Protocol：Ethernet, Fast Ethernet

Network / Transport Protocol：IPSec

Remote Management Protocol：SNMP, HTTP, SSH-2

Features：Firewall protection, cisco 1841 configuration hardware compression, VPN support, VLAN support, Intrusion Detection System (IDS), Intrusion Prevention System (IPS), wall mountable, Dynamic Multipoint VPN (DMVPN), Network Admissions Control (NAC)

Power：AC 120/230 V ( 50/60 Hz )

Dimensions (WxDxH)：34.3 cm x 27.4 cm x 4.4 cm

Weight：2.7 kg

How to Recover/Reset Password on Cisco 3925

The Cisco 3925 router is part of a family of networking equipment produced by Cisco, which has been a network equipment giant for many years. Used 3925 routers are available on the Internet at reasonable prices, so acquiring one is not difficult. However, if the password is unknown or lost, reconfiguration is impossible until the password is reset or recovered. Cisco has built in a procedure for rescuing lost or forgotten passwords or entering new passwords.

Things You'll Need: Serial to RJ-45 cable; Terminal emulation software

Instructions

1. Connect your computer to the router with the blue serial-to-RJ-45 cable that came with the router. The 9-pin D-shell end connects to your computer's serial port, while the RJ-45 end connects to the console jack on the router. The RJ-45 end resembles a slightly larger telephone jack connector.

2. Turn on your computer and establish a terminal session to the cisco 3825. You can use any terminal emulator, and many are freely available on the Internet. Configure the session settings as follows:

9600 baud

8 data bits

No parity

1 stop bit

No flow control

Plug the router's power cable into an electrical outlet, and as the cisco 3945 boots, you should see the Cisco boot messages. If you don't see any output on your computer's terminal session, check your settings on the session and restart it if necessary. Press "Break" within 30 seconds of powering on the router to enter rommon (rom monitor) mode.

3. Type "confreg 0x2142" and press "Enter" at the "rommon 1" prompt. This will cause the router to boot from its internal flash memory without loading the configuration into memory. At the following "rommon 2" prompt, router cisco type "reset" and press "Enter." This will cause the router to reload and ignore the previously saved configuration file.

4. Respond "no" and press "Enter" when prompted for responses to enter the initial dialog or basic management setup. Type "enable" and press "Enter" at the following "Router>" prompt. This will put you into enable mode and display the "Router#" prompts. Copy the non-volatile memory into memory with the "copy startup-config running-config" command, followed by the "Enter" key. buy cisco router Type "sho run" at the prompt and press "Enter" to display the current configuration, including the passwords, some of which may be encrypted.

5. Type "config t" at the prompt and press "Enter." At the "Router(config)#" prompt, type "enable secret <pswd>" -- where "pswd" is the password -- and press "Enter." At this point, your enable password is reset. Press "Ctrl" + "z" to return to the "Router#" prompt.

6. Type "config t" at the "Router#" prompts and presses "Enter." At the "Router(config)#" prompt, type "config-register 0x02102" and press "Enter" to reset the boot register to its normal setting. buy cisco routers Press "Ctrl" + "z" to leave configuration mode. Type "copy running-config startup-config" and press "Enter" to save your changes. Reboot the router and you should be able to login with your password.

• The most popular cisoco product - Cisco Catalyst 4500 Series Switches

The cisco 4500 is a mid-range modular chassis network switch manufactured by Cisco Systems. A Cisco Catalyst 4500 comprises a chassis, power supplies, one or two supervisors, line cards and service modules.

The ws-c4503 Series includes two series of Catalyst chassis: The Classic and newly launched E-Series chassis. The Classic and E-Series Catalyst 4500 chassis come in four sizes: 3-slot (4503-E), 6-slot (4506-E), 7-slot (4507R+E/4507R-E), and 10-slot (4510R+E/4510R-E).

The Cisco Catalyst 4500 Series Switches enable borderless networks, providing high performance, mobile, ws-c4503e-s6l-48v+ and secure user experience through Layer 2-4 switching investments. It enables security, mobility, application performance, video, and energy savings over an infrastructure that supports resiliency, virtualization,   and automation.

Cisco4500 Series Switches provide borderless performance, scalability, and services with reduced total cost of ownership and superior investment protection. ws-c3750x

Key features you need to be clear:

Performance and Density:

848 Gbps fabric with 48 Gbps per slot delivers a 2.6x increase in performance over previous generation

Industry’s highest PoEP port density with up to 240 ports of full 30 Watt PoEP

Application Performance:

Unprecedented layer 2 - 4 application visibility and control with Flexible NetFlow

Only modular access platform that can guarantee Service Level Agreements with IP SLA

Security:

Cisco TrustSec with 802.1ae (MACSec) hop-by-hop encryption and Security Group Tags (hardware-ready)

Anomaly and malware prevention ws-c4506-e through predefined, policy-based responses with Flexible NetFlow

Simplicity:

End-to-end campus deployment with single software release and common sparing

Complete Life Cycle Management: Design, Install, Operations and Upgrades

Simplified software licensing with a single image for LAN Base, ws-c3560x-24p-l IP base and Enterprise Services software

Operational efficiency:

In Service Software Upgrades for industry leading availability

Zero-touch, intelligent provisioning through Auto SmartPorts, AutoInstall and AutoQoS

Comprehensive automation with Cisco IOS Embedded Event Manager ws-f6700-dfc3cxl

Proactive diagnostics and remediation with Cisco Smart Call Home

Industry-leading power management with Cisco EnergyWise

Investment protection:

Backward and forward compatibility

Industry-leading investment protection with more than 10 years of backward compatibility

The benefits of Supervisor 7-E without line card upgrades

More details related to Cisco 4500 switches

Catalyst 4500 Line Cards

The Cisco Catalyst 4500 Series offers two classes of line cards: classic and E-Series. Classic line cards provide 6 gigabits of switching capacity per slot. E-Series line cards increase the per slot switching capacity to 24 gigabits.

Cisco 4500 switch power supplies

The Cisco 4500 is able to deliver high densities of Power over Ethernet across the chassis. Due to this, power supplies are a key element of configuration. The Cisco Catalyst 4500 E-Series offers AC power with several internal supplies: 1000W (data only),1400W (data only), 1300W (data and PoE), 2800W (data and PoE), 4200W (data and PoE), and 6000W (data and PoE).

The Cisco Catalyst 4500 E-Series has two DC power options—one is optimized for data-only deployments in service provider central offices (part number PWR-C45-1400DC), and the other is used for high-power PoE deployments (PWR-C45-1400DC-P).

Operating systems

The Catalyst 4500 currently supports Cisco IOS Operating System.

Price and Availability

Hot Models

WS-C4503-E: List price:  US$995.00 / Wholesale Price: US$547.00

WS-C4506-E:List price:  US$4,995.00 / Wholesale Price: US$2,747.00

WS-C4507R-E:List price:  US$9,995.00 / Wholesale Price: US$5,497.00

WS-C4507R+E: List price:  US$12,495.00 / Wholesale Price: US$6,872.00

Tips: If you want to order a Cisco 4500, you can visit routerswitch.com to see all models of Cisco Catalyst 4500 Series Switches to check purchasing and product details www.router-switch.com