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Transformations unless there is another NAT traversal solution that requires this feature to be turned
off. SIP Transformations works in bi-directional mode and it transforms messages going from LAN to
WAN and vice versa.
SIP Signaling inactivity time out (seconds) - Specifies signaling inactivity timeout.
SIP Media inactivity time out (seconds) - Specifies media inactivity timeout.
•
Enable H.323 Transformation - Select this option to allow stateful H.323 protocol-aware packet con-
tent inspection and modification by the SonicWALL. The SonicWALL performs any dynamic IP ad-
dress and transport port mapping within the H.323 packets, which is necessary for communication
between H.323 parties in trusted and untrusted networks/zones. Clear the Enable H.323 Transfor-
mation to bypass the H.323 specific processing performed by the SonicWALL.
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Enable RTSP Transformations - Select this option to support on-demand delivery of real-time data,
such as audio and video. RTSP (Real Time Streaming Protocol) is an application-level protocol for
control over delivery of data with real-time properties.
Source Routed Packets
Drop Source Routed Packets is selected by default. Clear the check box if you are testing traffic
between two specific hosts and you are using source routing.
TCP Connection Inactivity Timeout
If a connection to a remote server remains idle for more than five minutes, the SonicWALL closes the
connection. Without this timeout, Internet connections could stay open indefinitely, creating potential
security holes. You can increase the Inactivity Timeout if applications, such as Telnet and FTP, are
frequently disconnected.
Access Rule Service Options
Force inbound and outbound FTP data connections to use default port 20 - The default configuration
allows FTP connections from port 20 but remaps outbound traffic to a port such as 1024. If the check box
is selected, any FTP data connection through the SonicWALL must come from port 20 or the connection
is dropped. The event is then logged as a log event on the SonicWALL.
Summary of Contents for SonicOS Enhanced 2.2
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