Cisco Systems OL-15491-01 appendix Mode tcp, 198

Appendix A CSG2 Command Reference

mode tcp

mode tcp

To specify the mode for CSG2 TCP sessions, use the mode tcp command in CSG2 content configuration mode. To use the default mode, use the no form of this command.

mode tcp {datagram transparent [zero]}

no mode tcp

Syntax Description	datagram	Specifies that the CSG2 is to treat TCP sessions as datagrams.
	transparent	Specifies that the CSG2 is to treat TCP sessions as transparent.
	zero	(Optional) Specifies that TCP bytes are not to be reported for transparent TCP
		sessions.
Defaults	If you do not configure this command, the CSG2 treats TCP sessions as transparent, forwarding all TCP
	packets, including out-of-order packets, and reporting all new and retransmitted TCP payload bytes.
Command Modes	CSG2 content configuration
Command History	Release	Modification
	12.4(11)MD6	This command was introduced.

Usage Guidelines

Examples

The mode tcp command is valid only if the parse protocol other command is also specified for the content.

If you configure the mode tcp transparent command, the CSG2 forwards all TCP packets, including out-of-order packets, and reports all new and retransmitted TCP payload bytes. If you also configure the optional zero keyword, the CSG2 reports zero TCP bytes. The CSG2 uses TCP signals to establish and terminate the TCP sessions.

If you configure the mode tcp datagram command, the CSG2 forwards all TCP packets, including out-of-order packets, and reports zero TCP payload bytes. Each TCP session is established by the first SYN, and terminated by the content's idle timer.

The following example specifies transparent mode for TCP sessions for CSG2 content VPN:

ip csg content VPN

ip any tcp 10000

mode tcp transparent

Related Commands			Command	Description
			ip csg content	Configures content for CSG2 services, and enters CSG2 content configuration
				mode.
		Cisco Content Services Gateway - 2nd Generation Release 2.0 Installation and Configuration Guide
	A-198			OL-15491-01