Cisco SCE8000 Specifications Page 255

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Cisco SCE 8000 CLI Command Reference
Chapter 2 CLI Command Reference
ip-tunnel 6to4
ip-tunnel 6to4
To enable the IPv6-to-IPv4 tunneling in an IP tunnel, use the ip-tunnel 6to4 command in inteface
linecard configuartion mode.
To disable IPv6-to-IPv4 tunneling, use the no form of this command.
ip-tunnel 6to4
no ip-tunnel 6to4
Syntax Description This command has no arguments or keywords.
Command Default IP tunnel recognition is disabled.
Command Modes Interface linecard configuration (config-if)
Command History This table includes the following release-specific history entries:
Usage Guidelines The 6to4 protocol is an IPv6-based tunneling protocol. The IPv6 environment and the 6to4 environment
should be configured before you can use this command.
Caution 6to4 tunneling can be enabled or disabled only when no applications are loaded or the line card is shut
down.
If 6to4 is configured, depending on the configuration, the internal or the external IP header is considered
as the subscriber traffic. In the 6to4 IPv6 mode, the internal IP header is considered as the subscriber
traffic and in the 6to4-IPv4 mode as the external header.
If 6to4 is not configured, the Cisco SCE device considers the external IP header as the subscriber traffic.
All the flows in the tunnel are considered as a single flow.
The corresponding subscriber IP address gets mapped to the traffic processors that are configured to
handle IPv4 and IPv6, based on the 6to4 hash configuration in the 6to4-IPv6 mode.
Authorization: admin
Release Modification
3.7.5 This command was introduced.
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