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CCNP SP english WARISSON GOMES > ipv6 flashcards > Flashcards

ipv6 flashcards

unofficial sp guide.

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1
Q

What type of deployment is NAT64 typically used for?

A

Stateful

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2
Q

What does NAT64 allow?

A

Allows IPv6-only clients access to the IPv4 internet

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3
Q

What server is required for NAT64?

A

DNS64 server

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4
Q

Is 6in4 stateful or stateless?

A

Stateless

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5
Q

What does 6in4 allow?

A

Allows IPv6 sites to communicate over a shared IPv4-only network using p2p tunnels

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6
Q

What is a benefit of the p2p nature of the 6in4 tunnel?

A

IGP adjacency possible

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7
Q

Is 6to4 stateful or stateless?

A

Stateless

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8
Q

How is 6to4 different from 6in4?

A

Uses p2mp tunnels with dynamically determined endpoints

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9
Q

What address format does 6to4 use?

A

2002:::/48

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10
Q

Is IGP adjacency possible with 6to4?

A

No, due to p2mp nature

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11
Q

What is a key difference between 6RD and 6to4?

A

6RD does not require the 2002::/16 prefix

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12
Q

Does 6RD require full mapping of IPv4 addresses?

A

No, routers can share a common subnet

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13
Q

Is DS Lite stateful or stateless?

A

Stateful

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14
Q

What does DS Lite allow?

A

Allows IPv4 customers to traverse an IPv6-only access network

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15
Q

What does the AFTR device do in DS Lite?

A

Performs heavy stateful NAT

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16
Q

Does the CPE perform NAT in DS Lite?

A

No, it tunnels IPv4 traffic to the AFTR device

17
Q

How does IPv6 traffic flow in DS Lite?

A

IPv6 traffic flows natively

18
Q

Is MAP stateful or stateless?

A

Stateless

19
Q

How is MAP different from DS Lite?

A

MAP has NAT on the CPE and the BR is stateless

20
Q

What does the CPE do in MAP?

A

Performs NAT with a given set of source ports

21
Q

What does this enable in MAP?

A

Multiple CPEs can NAT to the same public IPv4 address

22
Q

How does IPv6 traffic flow in MAP?

A

IPv6 traffic flows natively

CCNP SP english WARISSON GOMES (41 decks)

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