Click Start > Programs > ArcGIS > License Server Administrator.During this time, connections to the license manager may be lost. The steps provided require that you briefly stop the license manager. Procedure for locking License Manager to specific ports Please refer to your firewall and operating system help documentation on opening ports. This topic does not explain the procedures required to open your hosts firewall. This range was pre-specified for license manager use because of the low traffic in that range. You can also change the lmgrd daemon from the default 27000 to another port between 2709. To secure the license management environment and allow you to implement a firewall, you can lock the ARCGIS daemon to a specific port. The License manager does not communicate over UDP. It is dynamic, meaning that it can listen on any available TCP port. The ARCGIS daemon, on the second line of the file, is not confined to a particular port range. By default, the lmgrd daemon is set to TCP port 27000.

The problem is caused by the firewall often closing or blocking access to the ports the license manager uses to communicate. Because the license manager uses the TCP/IP protocols, implementing such a firewall can pose problems between the license manager server and the clients connecting to it. Many of today's networks use a firewall for enhanced security from outside threats.

Procedure for locking License Manager to specific ports.

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