Multi VPN / Multi Users

Hello,

I have a question regarding VPN implementation.

<internet cloud (users)>---(VPN)---<router>-------<Private network 1>

|-------<Private network n>​

|-------<Private network n+1>​

The concept is to create a different tunnel (L2TP-IPsec) for each user, but I would like to keep the configuration as simple as possible for the user.

So my questions are :

Is there a way to implement this toplogy in a simplest way?(see below)
Can we avoid using groups?

Here is an idea of the current config:

ip local pool VPN 172.16.0.1 172.16.0.30
ip local pool VPN2 172.16.0.33 172.16.0.62
!
crypto isakmp client configuration group USER1_VPN
key user1
pool VPN1
acl ACL1
netmask 255.255.255.240
!
crypto isakmp client configuration group USER2_VPN
key user2
pool VPN2
acl ACL2
save-password
netmask 255.255.255.240
!

Thanks in advance for your help :beerglas: