Multiple NAT policies with DS-Lite and NAT64

DS-Lite and NAT64 diversion to NAT with multiple NAT policies is supported only through IPv6 filters.

Classic CLI

configure 
   filter
      ipv6-filter
         entry <entry-id> [create]
            action nat nat-type <nat-type> [nat-policy <nat-policy-name>]
            exit
         exit
      exit
   exit  

Where the nat-type parameter can be either dslite or NAT64.

The DS-Lite AFTR address and NAT64 destination prefix configuration under the corresponding (DS-Lite or NAT64) router/vprn>nat>inside context is mandatory. This is even when only filters are needed for traffic diversion to NAT.

For example, every AFTR address and NAT64 prefix that is configured as a match criteria in the filter, must also be duplicated in the router/vprn>nat>inside context. However, the opposite is not required.

IPv6 traffic with the destination address outside of the AFTR/NAT64 address/prefix follows normal IPv6 routing path within the 7750 SR.