Q&A
© 2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 8 of 11
Q. Is there a way to load different firmware apart from that embedded with the Cisco IOS Software?
A. Yes. This option is available for the ADSL platforms (857, 876, 877, and 877M) to allow independent ADSL
firmware upgrade to resolve ADSL interoperability related issues. There’s no need to upgrade Cisco IOS
software when the issue can be resolved with a different version of firmware.
Wireless Features
Q. What wireless standards are supported on Cisco 870 Series and 850 Series routers?
A. The 802.11b/g standards are available on these routers; 802.11a is not available on the routers.
Q. Is VLAN capability available for the WLAN on the new models?
A. VLAN is available on WLANs for both the Cisco 870 and Cisco 850 Series with the default image (Advanced
Security feature set).
Q. Are 802.11g access points backward-compatible to support both 802.11b and 802.11g?
A. Yes. The 802.11g access points are backward-compatible to support both 802.11b and 802.11g client devices.
Q. How do Cisco 870 Series and 850 Series wireless routers compare with Cisco Aironet
®
wireless
products?
A. The optional WLAN features on Cisco 870 Series and 850 Series routers incorporate access, security, and
wireless in a single device for the small office. Only wireless features relevant to environments that require a
single access point are supported. These routers do not support bridging or repeater functionality. The
integrated access points in the Cisco integrated services routers do not support the Light Weight Access Point
Protocol (LWAPP) and therefore are not supported by the Cisco Wireless LAN Controllers nor the Cisco
Wireless Controller System (WCS).
Q. What software is used to configure the integrated 802.11 access points?
A. The software used to configure the access points in the Cisco 870 Series and 850 Series is either Cisco SDM,
Cisco Configuration Professional, CiscoWorks LAN Management Solution, or the Cisco IOS Software
command-line interface (CLI).
Q. Are the Cisco 870 Series and Cisco 850 Series part of the Unified Wireless Network?
A. No.
Q. What is the default user name and password for integrated access points in Cisco 870 Series and 850
Series routers?
A. There is no default user name and password for the access points integrated in Cisco 870 Series and 850
Series routers. The access point is fully integrated with the 850 and 870 series platforms. It is treated as a
separate physical interface by these platforms.
Q. How do you extend access point coverage?
A. To extend the coverage of integrated access points in the Cisco 870 Series, customers can choose from
different externally mounted antennas to allow the router to be located in one area (such as behind a counter)
while coverage can be focused and extended to other areas (such as wall or ceiling placement). The Cisco 850
Series only has a single, fixed antenna connected directly to the router; there are no antenna options.
Q. Can two external antennas be used to cover two radio cells (for example, antenna 1 for cell 1 and
antenna 2 for cell 2)?
A. No. The external antennas are used in tandem to create more coverage and diversity. You should use the VLAN
capability to separate traffic.
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