802.1x Support in 1841 Router

Unanswered Question
Aug 17th, 2007

Does Router 1841 support 802.1x as an Authenticator, Authentication Server or just a supplicant?

I have this problem too.
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sohanshenoy Fri, 08/17/2007 - 01:14

Thanks Mohammed. As an Authenticator would it be Wireless or Wired?

mohammedmahmoud Fri, 08/17/2007 - 01:50


Either wired (with EtherSwitch HWICs) or wireless (with HWIC-AP WLAN interface card).


Mohammed Mahmoud.

sohanshenoy Tue, 08/21/2007 - 05:10

Thanks Mahammed. Can you please also tell me where I can get some documentation regarding the Setup of this router as an Authenticator. I could not get enough info in the manuals or in the net.

mohammedmahmoud Tue, 08/21/2007 - 05:35


On the 1841 you'll need a HWIC-4ESW, and do the ordinary dot1x configuration, it is like illustrated in this document:


To summarize it:

1. Step 1 As with other AAA authentication methods, enable AAA with the aaa new-model global command.

2. Step 2 As with other configurations using RADIUS servers, define the RADIUS server(s) IP address(es) and encryption key(s) using the radius-server host key commands.

3. Step 3 Similar to login authentication configuration, define the 802.1X authentication method using the aaa authentication dot1x default radius command.

4. Step 4 Enable 802.1X globally using the dot1x system auth-control global command.

5. Step 5 Set each interface to use it via dot1x port-control auto interface subcommand.


Mohammed Mahmoud.

kavaskar1980 Tue, 08/21/2007 - 05:53


Can anyone tell me whether any accesories are required for Cisco Aironet 350 Series Access Points (bridge) setup to act as authenticator in WLAN.

Also the accessories for D-Link DGS-3024 switch to act as authenticator in wired LAN.




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