Cisco Cisco IOS Software Release 12.0(13)S7
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Unicast Reverse Path Forwarding for IPv6 on the
Cisco 12000 Series Internet Router
Cisco 12000 Series Internet Router
The Unicast Reverse Path Forwarding (Unicast RPF) for IPv6 feature reduces problems caused by the
introduction of malformed or forged (spoofed) IPv6 source addresses into a network by discarding
IPv6 packets that lack a verifiable IPv6 source address. When enabled on a customer-facing interface (or
subinterface) of a Cisco 12000 series 10G Engine 5 SPA Interface Processor (10G SIP), this feature
filters IPv6 traffic to protect a service-provider network and its customer.
introduction of malformed or forged (spoofed) IPv6 source addresses into a network by discarding
IPv6 packets that lack a verifiable IPv6 source address. When enabled on a customer-facing interface (or
subinterface) of a Cisco 12000 series 10G Engine 5 SPA Interface Processor (10G SIP), this feature
filters IPv6 traffic to protect a service-provider network and its customer.
Feature History for Unicast RPF for IPv6
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Release
Modification
12.0(31)S
This feature was introduced in the Cisco 12000 series Internet router on the
10G Engine 5 SPA Interface Processor.
10G Engine 5 SPA Interface Processor.