Description of the illustration acs_026.png

This figure shows firewall security implemented on both the ACSLS client-side (SSI) and server side (CSI). The figure shows the Client and Server sides, separated by a firewall.

The Client side includes SSI, with unrestricted source ports.

The Server side includes the CSI, which includes the following ports:

• 1 - Single static port

• 2 - TCP 111

• 3 - UDP 111

In network failure instances, the CSI can query the SSI for the registered port.

This configuration is described in more detail in surrounding text.