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Which two tunneling techniques determine the IPv4 destination address on a per-packet basis? (Choose two.)
Correct Answer: A,B
Explanation/Reference: Explanation: Tunnel Configuration Parameters by Tunneling Type Tunneling Type Tunnel Configuration Parameter Tunnel Mode Tunnel Source Tunnel Destination Interface Prefix or Address Manual ipv6ip An IPv4 address, or a reference to an interface on which IPv4 is configured. An IPv4 address. An IPv6 address. GRE/IPv4 gre ip An IPv4 address. An IPv6 address. IPv4- compatible ipv6ip auto-tunnel Not required. These are all point-to-multipoint tunneling types. The IPv4 destination address is calculated, on a per-packet basis, from the IPv6 destination. Not required. The interface address is generated as : 6 :tunnel-source/96. to4 ipv6ip 6to4 An IPv6 address. The prefix must embed the tunnel source IPv4 address ISATAP ipv6ip isatap An IPv6 prefix in modified eui-64 format. The IPv6 address is generated from the prefix and the tunnel source IPv4 address. Reference. http://www.cisco.com/c/en/us/td/docs/ios/ipv6/configuration/guide/12_4t/ipv6_12_4t_book/ip6- tunnel.html