Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CCNP ROUTE 300-101 > Ch 6 - EIGRP for IPv6 and Named EIGRP > Flashcards

Ch 6 - EIGRP for IPv6 and Named EIGRP Flashcards

You may prefer our related Brainscape-certified flashcards:
Physics 101 flashcards Psychology 101 flashcards Chemistry 101 flashcards Biology 101 flashcards Organic Chemistry 101 flashcards Sociology 101 flashcards
1
Q

You are attempting to configure EIGRP for IPv6 on a router. However, Cisco IOS presents you with a message indicating that routing is not enabled for IPv6. What command would you issue to enable IPv6 routing?

a. Router(config)# ipv6 unicast-routing
b. Router(config-rtr)# ipv6 unicast-routing
c. Router(config-rtr)# ipv6 cef
d. Router(config)# ipv6 eigrp

A

A. By default, IPv6 routing is not enabled on a router. To enable it, you issue the
ipv6 unicast-routing command in global configuration mode.
As a best practice, you should also enter ipv6 cef in global configuration mode (not
router configuration mode) to enable Cisco Express Forwarding for IPv6.
However, ipv6 eigrp is not a valid command.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Router R1 connects to Router R2 over an Ethernet LAN with both routers using their Fa0/0 interfaces. R1 learns a route from R2 using EIGRP for IPv6. That route lists Fa0/0 as the outgoing interface with R2 as the next hop. The configuration excerpt shows all relevant configuration on R2’s Fa0/0 interface. Which of the following is true about R1’s route?
interface f0/0
mac-address 1111.1111.1111
ipv6 address 2000::/64 eui-64
ipv6 address 2001::1/64
a. The next hop is 2000::1311:11FF:FE11:1111
b. The next hop is FE80::1311:11FF:FE11:1111
c. The next hop is FE80::5111:11FF:FE11:1111
d. The next hop is 2001::1

A

B. EIGRP uses the link-local address as the next hop for routing proto-
cols. Based on R2’s MAC address, R2’s link-local address on Fa 0/0 will be FE80::1311:11FF:FE11:1111. This value is derived by splitting the MAC, inserting FFFE, and flipping bit 7, making the initial hex 11 become hex 13.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Under what configuration mode for Named EIGRP would you configure a passive interface?

a. Address-Family configuration mode
b. Address-Family-Interface configuration mode
c. Address-Family-Global configuration mode
d. Address-Family-Topology configuration mode

A

B. General EIGRP commands (for example, metric, eigrp stub, and eigrp router-id) are configured under address-family configuration mode.
Commands entered under interface configuration mode with a traditional EIGRP configuration (for example, authentication, bandwidth-percent, hello-interval, hold-time, passive-interface, and split-horizon) are entered under address-family-interface configuration mode with Named EIGRP.
Commands having a direct impact on a router’s EIGRP topology (for example, auto-summary, maximum-paths, redistribute, and variance) are given under address-family-topology configuration mode.
There is no address-family-global configuration mode.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Under what configuration mode for Named EIGRP would you configure variance?

a. Address-Family configuration mode
b. Address-Family-interface configuration mode
c. Address-Family-Global configuration mode
d. Address-Family-Topology configuration mode

A

D. General EIGRP commands (for example, metric, eigrp stub, and eigrp router-id) are configured under address-family configuration mode.
Commands entered under interface configuration mode with a traditional EIGRP configuration (for example, authentication, bandwidth-percent, hello-interval, hold-time, passive-interface, and split-horizon) are entered under address-family-interface configuration mode with Named EIGRP.
Commands having a direct impact on a router’s EIGRP topology (for example, auto-summary, maximum-paths, redistribute, and variance) are given under address-family-topology configuration mode.
There is no address-family-global configuration mode.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

When configuring Named EIGRP, you want to specify the Hello interval for all interfaces. You could go into address-family-interface configuration mode for each interface and enter the hello-interval command. However, what command could you give from address-family configuration mode to go into a configuration mode that allowed you to configure the Hello Interval for all interfaces with a single hello-interval command?

a. address-family global
b. af-interface default
c. af-interface-all
d. address-family *

A

B. EIGRP parameters configured under interface configuration mode with a traditional EIGRP configuration can be configured under address-family-interface configuration mode with Named EIGRP. To enter address-family-interface configuration mode for a specific interface, you can enter the af-interface interface_identifier command.
However, if you want an interface setting to be applied to all interfaces, you can enter the af-interface default command. Although commands entered from this configuration mode are inherited by all router interfaces, you can go into address-family-interface configuration mode for specific interfaces to override any globally configured interface settings.
None of the commands given in the question, other than af-interface default, are valid.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

You configured a router with a Named EIGRP configuration. What command would you use to view the EIGRP for IPv4 topology table?

a. show address-family ipv4 topology
b. show ip eigrp topology
c. show address-family-topology
d. show ip address-family

A

B. Even though Named EIGRP is configured quite differently than a traditional EIGRP configuration, the verification commands remain the same. Therefore, to view a router’s EIGRP for IPv4 topology table, you would issue the same show ip eigrp topology command that you would use with a traditional EIGRP for IPv4 configuration.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Which of the following is true for EIGRPv6?

a. neighbors are not required to be in same subnet.
b. supports route summarization
c. uses L3 header protocol type 88
d. does not use UDP

A

a, c, d

IPv6 has no concept of classful addressing, so route summarization does not apply to IPv6.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which fo the following features do both EIGRP and EIGRPv6 support or use?

a. Successor - Feasible Successor logic
b. DUAL -
c. Supports VLSM
d. triggered updates
e. default composite metrics are bandwidth and delay
f. supports route tagging
g. same metric for infinity, (2^32 -1)
h. can perform auto-summarization

A

All except h are true.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What command is missing to enable EIGRPv6 on this router?

R1(config)# ipv6 router eigrp 65535
R1)config-router)# no shut

R1(config-if)# ipv6 enable
R1(config-if)# ipv6 eigrp 65535
R1(config-if)# no shut-

A

ipv6 routing is not turned on with ‘ipvt unicast-routing’ global command. Otherwise the commands are all correct.

The range of valid EIGRP ASNs is 1-65535.
The RID will autoconfigure, or you can manually assign it with ‘ router-id

The interface is enabled for IPv6 and will automatically have a link-local address for the local link. This is sufficient for the router to be fully configured. Here is the command for a global unicast address config:

ipv6 address 2018:BAD:BEEF::5/64

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

If you do not configure the router-id manually, what will the ID be set to?

A
  1. highest IPv4 on loopback that is up/up
  2. highest IPv4 on non-loopback that is up/up

Note: Best practice is to set the ID manually with ‘router-id <32-bit DDN>

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

T/F: EIGRPv6 has the same two basic functions as EIGRPv4.

  1. discover neighbors
  2. advertise connected subnets (excluding link-local and local routes)
A

True.

Link-local networks do not get forwarded.

Local routes are /128 routes representing interfaces that are only used by the local router for forwarding packets. There is no reason to advertise these.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What command shows interfaces that EIGRPv6 is enabled on, metric weights, variance, redistribution, max-paths, and ADMIN distance?

A

sh ipv6 protocols

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the command to display sent and received updates for EIGRPv6?

A

debug ipv6 eigrp notifications

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

T/F: Named EIGRP consolidates almost all the parameters under the router config.

A

True. This is an advantage to using named EIGRP. No global command, no interface commands. elegant really.

numbered EIGRP has commands all over the place, global, interface and router configs.

default-timers, variance option, summarized addresses and router-id are all configured in one place.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

There are 3 modes to named EIGRP config. First is the Address-Family. What types of things are configured here?

A

General commands.

Router-ID, network, stub config.

Multiple address-families are permitted, e.g. v4 and v6 can be in the same virtual EIGRP instance.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

There are 3 modes to named EIGRP config. The second is the Address-Family-Interface. What types of things are configured here?

A

Interface commands!

timer, passive-interface, authentication, bandwidth-percent, hello-interval, hold time, split-horizon.

17
Q

There are 3 modes to named EIGRP config. The third is the Address-Family-Topology. What types of things are configured here?

A

commands that affect the Topo Table.

auto-summary, maximum-paths, redistribute, variance.

18
Q

What three commands are required to minimally configure named EIGRP?

A

router eigrp
address-family [ipv4 | ipv6] autonomous-system
network

optional commands include:
af-interface [default | ]
  exit
topology-base (note: must exit af-interface first)
  exit
19
Q

What command shows interfaces EIGRPv6 is enabled on, metric weights, variance redistribution, maximum-paths, and ADMIN distance?

A

sh ipv6 protocols

20
Q

What is the command to display sent and received updates for EIGRPv6?

A

debug ipv6 eigrp notifications

21
Q

What named EIGRP configuration mode has these parameters:

  1. authentication
  2. bandwidth-percent
  3. hello-interval
  4. hold time
  5. passive-interface
  6. split horizon
A

Address-Family-Interface. This mode holds interface specific commands.

Note: specific interface config commands will override the Address-Family-Interface commands.

22
Q

What named EIGRP configuration mode has these parameters:

  1. variance
  2. redistribute
  3. maximum-paths
  4. auto-summary
A

Address-Family-Topology. This mode affects the topology table.

23
Q

What named EIGRP configuration mode has these parameters:

  1. router-id
  2. network
  3. stub configuration
A

Address-Family. This mode holds general commands that affect all the modes. There can be multiple Address-Families, like for IPv4 and IPv6.

CCNP ROUTE 300-101 (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions