I have configured a vpdn for l2tp/IPsec dialin users on an 1811. An "ip local pool" is used (in the Virtual-Template) to assign an IP address to the caller.
I would prefer if each username had a fixed IP address that is used for every session.
On an earlier router (3725) running 12.4(25)d the users got an address from the pool in the order they called, and when they called again they usually got the same address. An exception was when the call failed on the client side and they called again before the router noticed it, then they got a new address.
On the 1811 running 15.1(4)M4 the same user gets a new address everytime they call. When "show ip local pool " is done, it shows the same username with many different IP addresses. Even when the call has been cleared for quite some time, the same address is not re-used until the entire pool has been used.
Is it possible to revert to the previous behaviour? Is it possible to assign a fixed address to a username?