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by Joe Harris, CCIE# 6200

Today is Friday, August 29th, 2008

About the Author

Joe Harris, CCIE No. 6200 (R&S, Security & SP) is a Systems Engineer with Cisco Systems® specializing in Security. In addition to authoring Cisco Network Security Little Black Book, Joe has also been a technical reviewer for several Cisco Press publications and written articles, white papers, and presentations on various security technologies. He also assists various Certification Partners by beta testing their newest CCIE certification workbooks and has been recognized by Cisco as an SE Wall of Fame award winner.

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Cisco Wireless HWIC Config

November 4th, 2007 • Related • Filed Under

You may be or may not be aware that Cisco has High-Speed Wireless WAN Interface Cards (HWIC-AP) that can be installed in your ISR routers that provides A/B/G wireless connectivity services integrated right into the ISR router.

Read More Here

Adding wireless access point functionality to the Cisco integrated services router’s capabilities helps simplify configuration, deployment, and management of wireless LANs (WLANs) at enterprise branch offices or small and medium-sized businesses. The Cisco WLAN high-speed WAN interface cards (HWICs) add access point functionality to the integrated Layer 3 routing, Layer 2 switching, and network security functions of the modular Cisco 1800 Series, and fixed-configuration Cisco 2800 Series and Cisco 3800 Series integrated services routers. This is a very nice solution for SMB customers that need an all-in-one solution that provides Firewall, IPS, Call Processing, Voice mail and Wireless all in a very small form-factor.

You may not know this but the actual radio is unlike other radios featured under the Aironet umbrella of products, the radio in the HWIC-AP cards is actually an ATHEROS radio, this can be seen from the following “show controllers Dot11Radio 0/0/0” command that I used on my 1841 with an HWIC-AP-G-A installed:

1841#sh controllers dot11Radio 0/0/0

Load for five secs: 2%/0%; one minute: 1%; five minutes: 1%

Time source is NTP, 10:17:23.202 CST Sun Nov 4 2007

!

interface Dot11Radio0/0/0

Radio ATHEROS AR5213, Address 0014.f162.90b0, BBlock version 0.01, Software version 3.00.0

Serial number: ************

Carrier Set: Americas (US )

DFS Required: No

Current Frequency: 2437 Mhz Channel 6

Allowed Frequencies: 2412(1) 2417(2) 2422(3) 2427(4) 2432(5) 2437(6) 2442(7) 2447(8) 2452(9) 2457(10) 2462(11)

Current CCK Power: 20 dBm

Allowed CCK Power Levels: 3 4 5 6 7 10 13 15 17 18 20

Current OFDM Power: 17 dBm

Allowed OFDM Power Levels: 3 4 5 6 7 10 13 15 17

ERP settings: short slot time.

Neighbors in non-erp mode:

!
…….

Now many of you have asked for a sample config of an ISR that had a Wireless HWIC-AP installed….I have provided a sample config of an HWIC that uses Static WEP with one SSID defined and broadcasting of the SSID disabled below (If guest mode is disabled, the SSID is not broadcast in the beacon messages). The documentation for the HWIC-AP Card can be found here: HWIC-AP Documentation. A few other good sample configs are linked below.