Hi Beelze,
Answering your questions - yes, the profile I provided above is a subscriber profile configured on FreeRadius. An excerpt from your link:
RADIUS attributes and VSAs can override the values you configured by a tunnel profile in a domain map. In the absence of a domain map, RADIUS can supply all the characteristics of a tunnel. The steps in the following procedure list the corresponding standard RADIUS attribute or VSA that you can configure on your RADIUS server to modify or configure the tunnel profile.
Essentially it means that no additional configuration is needed on LAC - all tunnel attributes can be sourced from Radius in the Access-Accept for the particular user that will be tunneled to LNS.
Regarding number of L2TP tunnels you may want to provide some level of redundancy (just in case one of LNSs fails), so it's better to return at least two destinations for a tunneled subscriber. I'm not 100% sure, but I think by default the same L2TP tunnel is used for the subsequent subscribers tunneled to the same destination (if not, you'll need to add exactly the same tunnel-assignment-id to the subscriber profile to force usage of the same tunnel).
HTH
Best regards,
Sergii
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