Secure Mobile Access 12.4 Administration Guide

RADIUS-Assigned Address Pools

Some applications require a one-to-one relationship between an assigned IP address and a user. This is best supported by a RADIUS server, where IP address allocation happens during the authorization process, as part of authentication.

This strict one-to-one correlation may have some unintended consequences:

  • For example, if an employee is logged in to the appliance at work and forgets to log out, logging in from home will fail: the IP address is still attached to the original tunnel connection at the office. Optionally, you can configure the community and realm in AMC that is referencing the RADIUS server to use other IP address pools if the RADIUS pool is exhausted.
  • If you have two appliances authenticating against the same RADIUS server and both are using RADIUS pools, duplicate address assignments will be made, resulting in multiple network conflicts.

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