Cisco PIX 520 - PIX Firewall 520 Online Help Manual page 209

System Properties>Advanced>FixUp>SIP
The SIP panel allows you to enable or disable the PIX Firewall to look into the payload of the Session Initiation
Protocol (SIP) signal channel and apply the Adaptive Security Algorithm (ASA). You can specify the port at
which the PIX Firewall listens for SIP traffic. SIP FixUp is enabled for port 5060 by default.
The following sections are included in this Help topic:
Important Notes
Field Descriptions
Disabling SIP FixUp
Enabling SIP FixUp
Resetting to Last Applied Settings
Important Notes
The PIX Firewall uses SIP to support Voice over IP (VoIP) gateways and VoIP proxy servers.
For more information about the protocols used in the FixUp panels, refer to the
Cisco Secure PIX Firewall Version
Field Descriptions
The SIP panel displays the following fields:
Enable—Enables SIP FixUp for a PIX Firewall. Selecting this check box disables SIP FixUp.
Port—Specifies port 5060 as the port at which the PIX Firewall listens for SIP traffic.
Note: The SIP port number cannot be changed.
Apply to PIX—Sends changes made in PDM to the PIX Firewall unit and applies them to the running
configuration.
Reset—Discards changes and reverts the panel to the information displayed when it was opened or the last
time Refresh was clicked while open.
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Configuration Guide for the