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How to build an L2TP tunnel between a 6400 and a RADIUS Server?

I have several thousand uses terminating PPPoE on 6400 chassis. These users are sent to a RADIUS server for authentication. I am trying to set things up so I have a secure L2TP tunnel between my 6400's and the RADIUS Servers. I don't want the end users to use L2TP ever. I only want L2TP between the 6400 and RADIUS Server so I can secure the negotiation between the 6400 and RADIUS Server. So, if PPPoE user signs on, his username and password which is passed to the RADIUS Server will be secure.

Sample configurations would be much appreciated.

1 REPLY
Anonymous
N/A

Re: How to build an L2TP tunnel between a 6400 and a RADIUS Serv

I know of no RADIUS (or TACACS)

server that supports L2TP tunneling.

If you want secure connections to

the server, you can use the RADIUS

key to encrypt traffic; see

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fsecur_r/fssprocr/srfrad.htm#xtocid28

Otherwise, you may want to look at

IPSEC (but I don't know if that would

be supported on AAA servers, either).

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