Specifications

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Cisco SCE 2000 and SCE 1000 CLI Command Reference
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Chapter 2 CLI Command Reference
ip-tunnel l2tp skip
ip-tunnel l2tp skip
Configures the recognition of L2TP tunnels and skipping into the internal IP packet. Use the no form of
this command to disable tunnel recognition and classify traffic by the external IP address.
ip-tunnel L2TP skip
no ip-tunnel
Syntax Description This command has no arguments or keywords.
Command Default By default, IP tunnel recognition is disabled.
Command Modes Linecard Interface Configuration
Command History This table includes the following release-specific history entries:
Usage Guidelines L2TP is an IP-based tunneling protocol. Therefore, the system must be specifically configured to
recognize the L2TP flows, given the UDP port used for L2TP. The SCE platform can then skip the
external IP, UDP, and L2TP headers, reaching the internal IP, which is the actual subscriber traffic. If
L2TP is not configured, the system treats the external IP header as the subscriber traffic, thus all the
flows in the tunnel are seen as a single flow.
The IP tunnel mode is mutually exclusive with other MPLS- or VLAN-based classification.
Use the L2TP identify-by command to configure the port number that the LNS and LAC use for L2TP
tunnels.
Authorization: admin
Examples The following example enables recognition of L2TP tunnels.
SCE>enable 10
Password:<cisco>
SCE#config
SCE(config)#interface linecard 0
SCE(config if)#ip-tunnel L2TP skip 
SCE(config if)#
Release Modification
3.0.0 This command was introduced.