NAR can be implemented with IP based or CLI/DNIS based solution.
VPN concentrator passes attribute 31 in authentication request (by default), but even if you are facing an issue getting ip address in attribute 31, you can try implementing cli/dnis based solution, it will help.
Following link can give you more information on NAR:
This document gives several answers on frequently asked questions for PFRv3 channel state behavior.
Q1: What are all the channel operational states from a BR (border role) perspective and what are the rules/conditions to be in each st...
The need was to reach an host inside a LAN through a VPN connection managed by the LAN gateway (Cisco 1921).
The LAN gateway performs NAT and there was a dedicate nat rule for the host i wanted to reach through VPN.
I couldn't connect to the hos...