Which type of IPv6 over IPv4 tunnel protocol on an HP 12500 switch requires that you specify a
destination?

A.
IPv6 over IPv4

B.
ISATAP

C.
IPv6 over IPv4 auto (or IPv4-compatible)

D.
6 to 4

Explanation:
IPv6-over-IPv4 Tunnels
* Endpoints must be upgraded to dual stack.
* The rest of the traversed network can remain as is.
* 41 in the Protocol field identifies the IPv6 encapsulation.
* tunnel endpoints’ IPv4 addresses are identified in the Source and Destination fields.

Note: HP 12500 VPN Firewall Module supports:
* IPv6 over IPv4 GRE tunnel
* 6to4 tunnel (RFC 3056)
* ISATAP tunnel
Incorrect answer:
B: The Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) connects
IPv6 hosts/routers over IPv4 networks. ISATAP views the IPv4 network
as a link layer for IPv6 and views other nodes on the network as
potential IPv6 hosts/routers. ISATAP supports an automatic tunneling
abstraction similar to the Non-Broadcast Multiple Access (NBMA)
model.
D: 6 to 4 Configuration Worksheet