C881-K9, Cisco 881 Router, 4 ports/SSL VPN/Firewall

What is the difference between ISR800 and ISR900?

In the integrated services routers family, both of the Cisco ISR 800 and Cisco ISR 900 are designed for the enterprise small branch offices.
As two series in the same application, which is better?
Cisco 800 integrated services routers were released earlier than the Cisco 900 ISR. It means that 800 ISR is going to be the EOS or EOL series, but we will still like it, because of its good performance after the checking of the market.Please learn more details here .

Can I boot a Cisco IOS Software image and Cisco IOS Software configuration file from the USB flash memory installed on the C881-K9?

During the router reload process, the Cisco 880 Series automatically searches for a bootable Cisco IOS Software image on the USB flash memory if no bootable image is available on the onboard flash memory. A Cisco IOS Software configuration file can be booted from the USB flash memory only if the Cisco IOS Software command boot config usbflash0: is part of the router startup configuration stored in NVRAM.

What is the function of the virtual auxiliary port?

On the Cisco 880 Series, the console port supports modem control signals. When an external modem is connected to this port, you can use this interface for out-of-band remote management of the router or as a backup WAN interface. An optional RJ-45 to DB-25 male straight-through cable is available to connect modems to this port. A limited set of modems and terminal adapters has been tested, but you can use any Hayes-compatible modem or terminal adapter to connect to this port. The console port behaves like a standard Cisco auxiliary (AUX) port if configured as such and can provide bit rates up to 115.2 kbps.

What is the purpose of the Reset button?

The Reset button is used to restore the router to the default factory settings if pressed within 5 seconds of router power up. Here is how it works:
- The router will not react to the Reset button if it is pressed 5 seconds or more after power up.
- When the Reset button is pressed within 5 seconds of bootup and there is no valid xxx.cfg file in the flash memory, the router boots up with the factory defaults stored in nonvolatile RAM (NVRAM).
- When the Reset button is pressed within 5 seconds of boot up and there is a valid xxx.cfg file in the flash memory, the router boots up with the xxx.cfg file and avoids the startup-config file in NVRAM. The xxx.cfg default configuration file in flash memory also replaces the startup-config file in NVRAM.

What kind of 3G modem is integrated with the Cisco 880 Series routers?

When ordered with the 3G part number, the Cisco 880 Series is bundled with a modem branded by Cisco and supplied by Sierra Wireless: AC597E 3G modem for the Code Division Multiple Access (CDMA) network or AC880E 3G modem for the Global System for Mobile Communications (GSM) network.

Is hardware-based encryption available on the C881-K9?

Yes. Hardware-assisted IP Security (IPsec) Triple Data Encryption Standard (3DES) and Advanced Encryption Standard (AES) encryption is available on the Cisco 880 Series; 128-, 192-, and 256-bit keys are supported for AES.

Does Cisco Security Manager support the C881-K9?

Cisco Security Manager Version 3.2.1 supports the Cisco 881 and 888 platforms.

What is the Cisco IOS Software Activation feature?

Software activation authorizes and enables use of a Cisco software feature or feature sets. A special file contained in the device, called a license file, is examined by Cisco software when the device is powered on. Based on the license file installed, Cisco software enables the appropriate feature sets.

Which Cisco IOS Software releases does the C881-K9 support?

The Cisco 880 Series routers support Cisco IOS Software Release 12.4(20)T and later.

Is the router memory upgradable?

An appropriate amount of router flash memory has been integrated for the different Cisco 880 Series hardware models, and it is not upgradable. DRAM is upgradable on the Cisco 880 Series only. Refer to the Cisco 880 Series data sheets for default memory configurations and upgrade options.

Are there any hardware upgrade options for C881-K9?

No. The Cisco 880 Series routers are fixed-configuration integrated services routers that do not have hardware upgrade options (except for memory). You must decide the hardware configuration of the router by selecting the desirable product number when you order.

What is the Cisco cisco c881 k9?

The Cisco cisco c881 k9 is a router designed for small and midsize businesses. It provides Ethernet and WAN ports and can support various WAN technologies.

What are the benefits of using the Cisco cisco c881 k9?

The Cisco cisco c881 k9 offers features such as security, QoS, and VPN capabilities, which help to ensure the reliability and performance of the network. It is also easy to manage and deploy.

What is the maximum number of devices that can be connected to the Cisco cisco c881 k9?

The Cisco cisco c881 k9 can support up to 20 LAN devices.

Can the Cisco cisco c881 k9 be managed remotely?

Yes, the Cisco cisco c881 k9 can be managed remotely through a web-based interface, CLI, or SNMP.

Does the Cisco cisco c881 k9 support PoE?

No, the Cisco cisco c881 k9 does not support PoE.

What is the maximum VPN throughput of the Cisco cisco c881 k9?

The Cisco cisco c881 k9 has a maximum VPN throughput of 20 Mbps.

Is the Cisco cisco c881 k9 stackable?

No, the Cisco cisco c881 k9 is not stackable.

What are the dimensions of the Cisco cisco c881 k9?

The Cisco cisco c881 k9 has a height of 1.75 inches, a width of 12.8 inches, and a depth of 9.8 inches.

What type of power supply does the Cisco cisco c881 k9 use?

The Cisco cisco c881 k9 uses an external AC power adapter.

Does the Cisco cisco c881 k9 support IPv6?

Yes, the Cisco cisco c881 k9 supports IPv6.

How cost-effective is the Cisco 881 Ethernet Security Router?

The Cisco 881-K9 offers robust security features like SSL, VPN, and a firewall at a competitive price, making it cost-effective for small to medium businesses.

What are the main features of the Cisco 881 Ethernet Security Router?

The C881-K9 includes SSL, VPN, firewall, and 4 switching ports, providing secure and versatile connectivity solutions.

In what scenarios is the Cisco 881-K9 most applicable?

The Cisco 881-K9 is ideal for small branch offices, remote workers, and SMBs needing secure internet and network connectivity.

How do I install the Cisco 881 Ethernet Security Router?

Follow the installation guide included with the C881-K9, which provides detailed steps for physical setup and initial configuration through the Cisco Configuration Professional (CCP).

Does the Cisco 881-K9 require any upgrades after purchase?

The Cisco 881-K9 may require periodic firmware updates to ensure security and feature enhancements, which can be downloaded from Cisco's official website.

Are there any alternative products to the Cisco 881-K9?

Alternatives include the Cisco ASA 5505 or the Cisco ISR 1100 Series, which offer different features and capabilities depending on your specific needs.

What common issues should users troubleshoot with the Cisco 881-K9?

Common issues include connectivity problems, which can often be resolved by checking cable connections, verifying configuration settings, or updating firmware.

What accessories are available for the Cisco 881 Ethernet Security Router?

Accessories include additional power supplies, mounting kits, and optional external antennas for enhanced wireless performance.

How does the Cisco 881-K9 compare to other similar products?

Compared to similar products, the Cisco 881-K9 offers a balance of security features, reliability, and cost-effectiveness, making it suitable for SMBs.

What is the best method for configuring the Cisco 881 Ethernet Security Router?

The best method is to use the Cisco Configuration Professional (CCP) for a user-friendly, GUI-based setup and configuration.

How cost-effective is the Cisco 881 Ethernet Security Router for small businesses?

The Cisco 881 Ethernet Security Router provides robust security features like SSL, VPN, and firewall at an affordable price, making it highly cost-effective for small businesses.

What are the key characteristics of the Cisco 881 Ethernet Security Router?

The Cisco 881 Ethernet Security Router features SSL VPN, firewall capabilities, and 4 switching ports, making it ideal for secure internet connections in small networks.

In which scenarios is the Cisco 881 Ethernet Security Router typically deployed?

This router is perfect for small business environments requiring secure remote access and reliable firewall protection with integrated switching ports.

How do I install the Cisco 881 Ethernet Security Router?

Follow the installation guide provided by Cisco, which includes connecting the router to your network, configuring network settings, and setting up security features.

Does the Cisco 881 Ethernet Security Router need regular upgrades?

Yes, it's advisable to regularly upgrade the firmware to ensure optimal performance, security patches, and new feature enhancements.

Are there alternative products to the Cisco 881 Ethernet Security Router?

Alternatives include the Cisco 891 and Cisco RV340 routers, which offer similar security features and performance.

What common troubleshooting steps are there for the Cisco 881 Ethernet Security Router?

Reboot the router, check connections, update firmware, and review configuration settings if you encounter connectivity or performance issues.

What accessories are available for the Cisco 881 Ethernet Security Router?

Accessories include power adapters, mounting kits, and additional cables for enhanced setup flexibility.

How does the Cisco 881 Ethernet Security Router compare to the Cisco 891?

The Cisco 881 is designed for smaller networks with fewer ports, while the Cisco 891 offers more ports and higher throughput, making it suitable for slightly larger networks.

What are the security features of the Cisco 881 Ethernet Security Router?

The router offers robust security measures such as SSL, VPN, and firewall capabilities to protect small business networks from threats.

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