300-510 SPRI: Implementing Cisco Service Provider Advanced Routing SolutionsDemo

By Cisco · Question Mode

QuestionQ79

Routing Policy and Manipulation

What kind of policy is supported by an IPv6 ISATAP tunnel?

  • A policies to transmit IPv6 traffic over a point-to-point tunnel
  • B policies that transmit Connectionless Network Service packets
  • C policies to transmit IPv6 traffic within a site
  • D policies that require addresses to have a 2002::/16 prefix
Explanation

ISATAP (Intra-Site Automatic Tunnel Addressing Protocol) tunnels IPv6 packets inside IPv4 to connect dual-stack hosts and routers across an IPv4-only network, treating the underlying IPv4 infrastructure as a virtual NBMA link. It is specifically designed for automatic tunneling of IPv6 traffic within a single site or intranet, rather than for point-to-point links between separate networks, CLNS packet transport, or address structures requiring the 2002::/16 prefix (which applies to 6to4, not ISATAP).

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