Cisco 877W - Integrated Services Router User Manual download pdf (Page 4)

Q&A

Q. Is there a limit to the number of users supported by Cisco 870 Series and 850 Series routers?

A. No. The Cisco 870 Series is recommended for up to 20 users and the Cisco 850 Series is recommended for up

to 10 users.

Q. What is Dynamic Domain Name System (DDNS)?

A. DDNS updates make sure that even dynamically assigned IP addresses are associated with an IP host DNS

name. This feature enables routers and hosts on the LAN to be accessible through a DNS name. Both the Cisco

870 Series and the Cisco 850 Series support this feature.

Q. Is L2TPv3 supported on the Cisco 850 and 870 Series

A. Since the Cisco 850 Series and Cisco 870 Series have only a single WAN interface and SVI will be required to

implement L2TPv3. L2TPv3 can be supported using the SVI interface starting with IOS release 12.4(20)T. This

feature is not supported on the 850 series.

Q. What Web-based or GUI tools are available for the platforms?

A. The Cisco 870 Series and 850 Series support the Cisco Router and Security Device Manager (SDM) tool for

easy router setup. They are also supported by Cisco Configuration Professional, the next generation device

manager. Please refer to the Cisco Configuration Professional datasheet for more details and minimum platform

IOS requirements.

Q. Is there any other network management application supported by the Cisco 870 Series and Cisco 850

Series?

A. Yes. CiscoWorks applications, including CiscoView Resource Manager Essentials and Web-based network and

device management applications, installed on a dedicated CiscoWorks server, can be used to manage the

Cisco 850 Series and 870 Series. CiscoView can be used to view graphical representations of front and back

device panels, configure parameters, and monitor real-time statistics for device performance and resource

utilization. Resource Manager Essentials provides tools to support inventory management, device configuration,

and software image updates; audit changes in the network; and analyze syslog messages .

The Cisco 850 Series and Cisco 870 Series are also supported by a suite of security management tools

including Cisco Security Manager and Cisco Security Monitoring, Analysis, and Response System (CS-MARS).

Together, these tools allow users to centrally provision firewall, VPN, IPS, and other features and to monitor the

network to identify, manage, and counter security threats.

Q. Can the CiscoView client and Cisco SDM/CCP coexist on the same workstation to manage the Cisco

devices?

A. Yes. Cisco SDM and CiscoView client interfaces can coexist on the same workstation: Cisco SDM can be used

primarily for router and security feature configuration, and CiscoView can be used for real-time display of the

physical router status and for Simple Network Management Protocol (SNMP)-based device monitoring.

Q. How do you set the router back to its factory default settings?

A. To set the router back to its factory defaults, you can either use Cisco SDM or you can go into the Cisco IOS

Software CLI and do a “write erase” on the router itself, or grab the factory default configuration from Cisco

Configuration Express. In addition, when the reset button is pressed within 5 seconds of the boot up and there is

a valid xxx.cfg file in the flash, the router boots up with the xxx.cfg file and avoids the startup-config file in

NVRAM.

Security Features

Q. Is hardware-based encryption available on Cisco 870 Series and Cisco 850 Series routers?

A. Yes. Hardware-assisted IPsec 3DES and AES encryption is available on both the Cisco 870 Series and Cisco

850 Series routers. Cisco 870 Series routers have superior performance compared to the Cisco 850 Series,

including encryption speed.

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Q&A 1
Table 4. Annex-M Masks 7

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