RADIUS authentication for VPDN

Answered Question
Oct 29th, 2008

I'm using RADIUS to authenticate PPP sessions coming into a 7200 router over L2TP (using BT's 21C WBMC product). However for every connection for an example user of [email protected] the RADIUS server sees one Access-Request for the domain only and then another for [email protected]. Is there a way to configure the 7200 to only send the [email protected] Access-Request and not the one for just the domain?

Correct Answer by dhananjoy chowdhury about 8 years 3 months ago

Hi Jon,


Try using the below commands,


Step 1 Router(config)# vpdn-group group-number

Step 2 Router(config-vpdn)# authen before-forward


Step 2 specifies that the entire structured username be sent to the radius server the first time the router contacts the radius server.

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Correct Answer
dhananjoy chowdhury Wed, 11/05/2008 - 08:33

Hi Jon,


Try using the below commands,


Step 1 Router(config)# vpdn-group group-number

Step 2 Router(config-vpdn)# authen before-forward


Step 2 specifies that the entire structured username be sent to the radius server the first time the router contacts the radius server.

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