9 Ccnp Route Qa Ipv6 Guest

8/18/2019 9 Ccnp Route Qa Ipv6 Guest

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CCNP Route 642-902 Questions/Answers – IPv6

2013 1

What are two rules for compacting IPv6 addresses? (hoose two!"

#! $he leading %eroes in an& 16'it segment do not have to e written!

)! *n& single+ continuous string of one or more 16'it segments that consists of all %eroes can e

represented with a doule colon!

*nswer, #+ )

1" IPv6 addresses often contain consecutive he-adecimal fields of %eros! $o simplif& address entr&+ &ou

can use two colons (,," to represent the consecutive fields of %eros when t&ping the IPv6 address!

)-ample address ma& e written as,

2001,d.,./a3,0,0,.a2e,30,33

)-ample address can e further simplified,

2001,d.,./a3,,.a2e,30,33

2" eading %eroes in a group ma& e omitted! $hus+ the e-ample address,

2001,0d.,./a3,0000,0000,.a2e,030,33

ma& e written as,

2001:db8:85a3:0:0:8a2e:370:7334


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What is the difference etween the IPv6 addresses ,,0 and ,,12.?

)! ,,0 is the default route+ and ,,12. is the unspecified address!

*nswer, )

Unspecified address ::/128 ' $he address with all %ero its is called the unspecified address

(corresponding to 0!0!0!032 in IPv"!

$his address must never e assigned to an interface and is to e used onl& in software efore the

application has learned its host4s source address appropriate for a pending connection! 5outers must not

forward pacets with the unspecified address!

*pplications ma& e listening on one or more specific interfaces for incoming connections+ which are

shown in listings of active internet connections & a specific IP address (and a port numer+ separated &

a colon"! When the unspecified address is shown it means that an application is listening for incoming

connections on all availale interfaces!

Default route ::/0 ' $he default unicast route address (corresponding to 0!0!0!00 in IPv"!

7ore on, i n 1

http://en.wikipedia.org/wiki/IPv6_addresshttp://en.wikipedia.org/wiki/IPv6_addresshttp://en.wikipedia.org/wiki/IPv6_address


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5efer to the output! What I89 command produces this output?

5outing Process :ospfv3 1: with I; 12!16!3!3Is is an autonomous s&stem oundr& router

5edistriuting )-ternal 5outes from+static

9P< schedule dela& / secs+ =old time etween two 9Pumer of e-ternal 9* 1! hecsum 9um 0-21.; >umer of areas in this router is 1! 1 normal 0 stu 0 nssa

*rea 1

>umer of interfaces om this area is 29P< algorithm e-ecuted times

>umer of 9* 1/! hecsum 9um 0-6/.1 >umer of ;itless 9* 0 >umer of indication 9* 0

>umer pf ;o>ot*ge 9* 0


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@sing the rules for IPv6 addressing+ how can the address 2031,0000,20


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5efer to the partial configurations in the e-hiit! What address is utili%ed for ;5 and #;5 identificationon 5outer1?

Router1#show run

DDDD output omitted DDDD

interface serial11ipv6 address 2001,10,


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5efer to the e-hiit! What is reBuired to complete the IPv6 routing configurations shown?

Router1#

interface 911ipv6 address 2001,10,


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When implementing 89P


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Which statement is true aout the implementation of IPv6 in an alread& e-isting IPv

networ?

! IPv and IPv6 networs can e routed simultaneousl&!

*nswer,

IPv and IPv6 networs can e routed simultaneousl& using dual'stac!

- Dual-stac techni!ues - =osts and networ devices run oth IPv and IPv6 at the same time! $his

techniBue is useful as a temporar& transition+ ut it adds overhead and uses man& resources!

It is an integration method in which a node has connectivit& to oth an IPv and IPv6 networ the node

has two protocol stacs! $he two stacs can e on the same interface or on multiple interfaces!

* dual'stac node chooses which stac to use ased on the destination address the node should prefer

IPv6 when availale! $he dual'stac approach to IPv6 integration will e one of the most commonl& used

methods! 8ld IPv'onl& applications will continue to wor as efore+ while new and modified

applications tae advantage of oth IP la&ers!


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Which two reductions are the correct reductions of the IPv6 address

2001,0d02,0000,0000,001,0000,0000,00/? (hoose two!"

;! 2001,d02,,1,0,0,/

)! 2001,d02,0,0,1,,/

*nswer, ;+ )

1" IPv6 addresses often contain consecutive he-adecimal fields of %eros! $o simplif& address entr&+ &ou

can use two colons (,," to represent the consecutive fields of %eros when t&ping the IPv6 address!

)-ample address ma& e written as,

2001,d.,./a3,0,0,.a2e,30,33

)-ample address can e further simplified,

2001,d.,./a3,,.a2e,30,33

2" eading %eroes in a group ma& e omitted! $hus+ the e-ample address,

2001,0d.,./a3,0000,0000,.a2e,030,33

ma& e written as,

2001,d.,./a3,0,0,.a2e,30,33


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Which statement is true aout the command ipv6 ospf 1 area 0?

#! It must e issued in interface configuration mode to enale the 89P< process for IPv6!

*nswer, #

8ne difference etween 89P


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Aour compan& plans on migrating their networ from IPv to IPv6 in the near future! Which threetechniBues can e used to transition from IPv to IPv6? (9elect three"

*! ;ual stac

#! >*$'P$

)! 6to tunneling

*nswer, *+ #+ )

* wide range of techniBues are availale for the period of transition etween IPv and IPv6! $hesetechniBues can e grouped into the following three categories,' Dual-stac techni!ues - =osts and networ devices run oth IPv and IPv6 at the same time! $histechniBue is useful as a temporar& transition+ ut it adds overhead and uses man& resources!' "unneling techni!ues - Isolated IPv6 networs are connected over an IPv infrastructure using tunnels!

$he edge devices are the onl& ones that need to e dual'staced! 9calailit& ma& e an issue if man&tunnels need to e created!' "ranslation techni!ues - * translation device converts IPv6 pacets into IPv pacets and vise versa+allowing IPv6'onl& devices to communicate with IPv'onl& devices! 9calailit& ma& again e an issue ecause of the resources reBuired on the translator device!


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5efer to the e-hiit! 5outers 51 and 52 are IPv6 #JP peers that have een configured to support a

neighor relationship over an IPv internetwor! Which three neighor IP addresses are valid choices to

use in the highlighted section of the e-hiit? (hoose three!"

R1#show running-config

Koutput omittedF

Einterface tunnel 0

tunnel source )thernet0tunnel mode ipv6 ip auto'tunnel

E

interface ethernet 0ip address 10!2!0!1 2//!2//!2//!0ipv6 address 3000,2222,,16

E

Koutput omittedFE

router gp 6/000

no s&nchroni%ationno gp default ipv'unicast

neighor LLL remote'as 6/002EKoutput omittedF

*! ,,0*3,0002

! ,,10!6!0!2

)! 0,0,0,0,0,0,10!6!0!2

*nswer, *+ + )


13/14

' $aing the portion 0*3,0002+ first divide the address into 2 $uple'groupings (2 =e- haracters" M 0*3 00 02

tep1 $

$ae 0* and multipl& the first character N0O & 16 and the second character O0 & 1!

*dd the two decimal values together to get the IPv decimal valueI), (0*16) + ((A=10)*1) = 10

tep2 $

5epeat the same process with 3+

I), (4*16) + (3*1) = 67

tep% $

5epeat the same process with 00+I), (0*16) + (0*1) = 0

tep& $

5epeat the same process with 02+

I), (0*16) + (2*1) = 2

$his will give &ou an P!4 "##ress o$ 10%67%0%2

' ,,10!6!0!2 is representation of P!4 "##ress o$ 10%67%0%2

' 0,0,0,0,0,0,10!6!0!2 is representation of P!4 "##ress o$ 10%67%0%2

7ore on, i n 1 i n 2

http://routing-bits.com/2009/03/19/converting-ipv4-to-ipv6/http://routing-bits.com/2009/03/19/converting-ipv4-to-ipv6/http://ipv6.ztsoftware.net/ipv4-to-ipv6/http://ipv6.ztsoftware.net/ipv4-to-ipv6/http://routing-bits.com/2009/03/19/converting-ipv4-to-ipv6/http://ipv6.ztsoftware.net/ipv4-to-ipv6/


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