Tag Name authenticate_ip_ttl
Usage authenticate_ip_ttl number

Description
With this option you control how long a proxy authentication will be bound to a specific IP address. If a request using the same user name is received during this time then access will be denied and both users are required to reauthenticate them selves. The idea behind this is to make it annoying for people to share their password to their friends, but yet allow a dialup user to reconnect on a different dialup port. The default is 0 to disable the check. Recommended values if you have dialup users are no more than 60 (seconds). If all your users are stationary then higher values may be used.

Default authenticate_ip_ttl 0

Example
authenticate_ip_ttl 3600