Specifications

mpls ipv6 source-interface
MP-178
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
mpls ipv6 source-interface
Note Effective with Cisco IOS Release 12.2(25)S, the mpls ipv6 source-interface command is not available
in Cisco IOS 12.2S releases.
Effective with Cisco IOS Release 12.4(15)T, the mpl
s ipv6 source-interface command is not available
in Cisco IOS 12.4T releases.
To specify an IPv6 address of an interface to be used as the source address for locally generated IPv6
packets to be sent over a Multiprotocol Label Switching (MPLS) network, use the mpls ipv6
source-interface command in global configuration mode. To disable this feature, use the no form of this
command.
mpls ipv6 source-interface typ
e number
no mpls ipv6 source-interface
Syntax Description
Command Default This command is disabled.
Command Modes Global configuration
Command History
Usage Guidelines Use the mpls ipv
6 source-interface command with the neighbor send-label address family
configuration command to allow IPv6 traffic to run over an IPv4 MPLS network without any software
or hardware configuration changes in the backbone. Edge routers, configured to run both IPv4 and IPv6,
forward IPv6 traffic using MPLS and multiprotocol internal BGP (MP-iBGP).
The mpls
ipv6 source-interface command was removed from Cisco IOS software as per RFC 3484,
which defines how the source address of a locally generated packet must be chosen. This command will
be removed from the other Cisco IOS release trains in which it currently appears.
type number The interface type and number whose IPv6 address is to be used as the source
fo
r locally generated IPv6 packets to be sent over an MPLS backbone.
Note A space between the type and number arguments is not required.
Release Modification
12.0(22)S This command was introduced.
12.2(15)T This command was integrated into Cisco IOS Release 12.2(15)T.
12.2(20)S This command was integrated into Cisco IOS Release 12.2(20)S.
12.2(25)S This command was removed from Cisco IOS Release 12.2(25)S.
12.4(15)T This command was removed from Cisco IOS Release 12.4(15)T.