CCNA 2 (v5.0.3 + v6.0) Chapter 8 Exam Answers 2020

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1. Which DHCPv4 message will a shopper ship to simply accept an IPv4 tackle that’s supplied by a DHCP server?

unicast DHCPACK
broadcast DHCPACK
unicast DHCPREQUEST
broadcast DHCPREQUEST

When a DHCP shopper receives DHCPOFFER messages, it should ship a broadcast DHCPREQUEST message for 2 functions. First, it signifies to the providing DHCP server that it wish to settle for the supply and bind the IP tackle. Second, it notifies some other responding DHCP servers that their provides are declined.

2. An organization makes use of DHCP servers to dynamically assign IPv4 addresses to worker workstations. The tackle lease period is about as 5 days. An worker returns to the workplace after an absence of 1 week. When the worker boots the workstation, it sends a message to acquire an IP tackle. Which Layer 2 and Layer 3 vacation spot addresses will the message include?

FF-FF-FF-FF-FF-FF and 255.255.255.255
each MAC and IPv4 addresses of the DHCP server
MAC tackle of the DHCP server and 255.255.255.255
FF-FF-FF-FF-FF-FF and IPv4 tackle of the DHCP server

When the lease of a dynamically assigned IPv4 tackle has expired, a workstation will ship a DHCPDISCOVER message to begin the method of acquiring a legitimate IP tackle. As a result of the workstation doesn’t know the addresses of DHCP servers, it sends the message by way of broadcast, with vacation spot addresses of FF-FF-FF-FF-FF-FF and 255.255.255.255.

3. Which is a DHCPv4 tackle allocation methodology that assigns IPv4 addresses for a restricted lease interval?

handbook allocation
pre-allocation
automated allocation
dynamic allocation

Dynamic allocation is probably the most generally carried out allocation mechanism. It leases the IP parameters for a predefined time frame.

4. Which tackle does a DHCPv4 server goal when sending a DHCPOFFER message to a shopper that makes an tackle request?

shopper IP tackle
shopper {hardware} tackle
gateway IP tackle
broadcast MAC tackle

Which tackle does a DHCPv4 server goal when sending a DHCPOFFER message to a shopper that makes an addres

5. As a DHCPv4 shopper lease is about to run out, what’s the message that the shopper sends the DHCP server?

DHCPDISCOVER
DHCPOFFER
DHCPREQUEST
DHCPACK

When a DHCP shopper lease is about to run out, the shopper sends a DHCPREQUEST message to the DHCPv4 server that initially offered the IPv4 tackle. This enables the shopper to request that the lease be prolonged.

6. What is a bonus of configuring a Cisco router as a relay agent?

It should permit DHCPDISCOVER messages to move with out alteration.
It might ahead each broadcast and multicast messages on behalf of purchasers.
It might present relay providers for a number of UDP providers.
It reduces the response time from a DHCP server.

By default, the ip helper-address command forwards the next eight UDP providers:
Port 37: Time
Port 49: TACACS
Port 53: DNS
Port 67: DHCP/BOOTP shopper
Port 68: DHCP/BOOTP server
Port 69: TFTP
Port 137: NetBIOS identify service
Port 138: NetBIOS datagram service

7. An administrator points the instructions:
Router(config)# interface g0/1
Router(config-if)# ip tackle dhcp
What’s the administrator making an attempt to realize?

configuring the router to behave as a DHCPv4 server
configuring the router to acquire IP parameters from a DHCPv4 server
configuring the router to behave as a relay agent
configuring the router to resolve IP tackle conflicts

The ip tackle dhcp command prompts the DHCPv4 shopper on a given interface. By doing this, the router will receive the IP parameters from a DHCPv4 server.

8. Below which two circumstances would a router normally be configured as a DHCPv4 shopper? (Select two.)

The router is meant for use as a SOHO gateway.
The administrator wants the router to behave as a relay agent.
The router is supposed to supply IP addresses to the hosts.
That is an ISP requirement.
The router has a hard and fast IP tackle.

SOHO routers are ceaselessly required by the ISP to be configured as DHCPv4 purchasers to be able to be related to the supplier.

9. An organization makes use of the SLAAC methodology to configure IPv6 addresses for the worker workstations. Which tackle will a shopper use as its default gateway?

the all-routers multicast tackle
the link-local tackle of the router interface that’s connected to the community
the distinctive native tackle of the router interface that’s connected to the community
the worldwide unicast tackle of the router interface that’s connected to the community

When a PC is configured to make use of the SLAAC methodology for configuring IPv6 addresses, it should use the prefix and prefix-length info that’s contained within the RA message, mixed with a 64-bit interface ID (obtained by utilizing the EUI-64 course of or by utilizing a random quantity that’s generated by the shopper working system), to type an IPv6 tackle. It makes use of the link-local tackle of the router interface that’s connected to the LAN phase as its IPv6 default gateway tackle.

10. A community administrator configures a router to ship RA messages with M flag as 0 and O flag as 1. Which assertion describes the impact of this configuration when a PC tries to configure its IPv6 tackle?

It ought to contact a DHCPv6 server for all the knowledge that it wants.
It ought to use the knowledge that’s contained within the RA message solely.
It ought to use the knowledge that’s contained within the RA message and get in touch with a DHCPv6 server for added info
It ought to contact a DHCPv6 server for the prefix, the prefix-length info, and an interface ID that’s each random and distinctive.

ICMPv6 RA messages include two flags to point whether or not a workstation ought to use SLAAC, a DHCPv6 server, or a mixture to configure its IPv6 tackle. These two flags are M flag and O flag. When each flags are 0 (by default), a shopper should solely use the knowledge within the RA message. When M flag is 0 and O flag is 1, a shopper ought to use the knowledge within the RA message and search for the opposite configuration parameters (equivalent to DNS server addresses) on DHCPv6 servers.

11. An organization implements the stateless DHCPv6 methodology for configuring IPv6 addresses on worker workstations. After a workstation receives messages from a number of DHCPv6 servers to point their availability for DHCPv6 service, which message does it ship to a server for configuration info?

DHCPv6 SOLICIT
DHCPv6 REQUEST
DHCPv6 ADVERTISE
DHCPv6 INFORMATION-REQUEST

In stateless DHCPv6 configuration, a shopper configures its IPv6 tackle by utilizing the prefix and prefix size within the RA message, mixed with a self-generated interface ID. It then contacts a DHCPv6 server for added configuration info by way of an INFORMATION-REQUEST message. The DHCPv6 SOLICIT message is utilized by a shopper to find a DHCPv6 server. The DHCPv6 ADVERTISE message is utilized by DHCPv6 servers to point their availability for DHCPv6 service. The DHCPv6 REQUEST message is utilized by a shopper, within the stateful DHCPv6 configuration, to request ALL configuration info from a DHCPv6 server.

12. An administrator needs to configure hosts to robotically assign IPv6 addresses to themselves by way of Router Commercial messages, but additionally to acquire the DNS server tackle from a DHCPv6 server. Which tackle project methodology ought to be configured?

SLAAC
stateless DHCPv6
stateful DHCPv6
RA and EUI-64

Stateless DHCPv6 permits purchasers to make use of ICMPv6 Router Commercial (RA) messages to robotically assign IPv6 addresses to themselves, however then permits these purchasers to contact a DHCPv6 server to acquire further info such because the area identify and tackle of DNS servers. SLAAC doesn’t permit the shopper to acquire further info by way of DHCPv6, and stateful DHCPv6 requires that the shopper obtain its interface tackle straight from a DHCPv6 server. RA messages, when mixed with an EUI-64 interface identifier, are used to robotically create an interface IPv6 tackle, and are a part of each SLAAC and stateless DHCPv6.

13. How does an IPv6 shopper be sure that it has a novel tackle after it configures its IPv6 tackle utilizing the SLAAC allocation methodology?

It sends an ARP message with the IPv6 tackle because the vacation spot IPv6 tackle.
It checks with the IPv6 tackle database that’s hosted by the SLAAC server.
It contacts the DHCPv6 server by way of a particular shaped ICMPv6 message.
It sends an ICMPv6 Neighbor Solicitation message with the IPv6 tackle because the goal IPv6 tackle.

SLAAC is a stateless allocation methodology and doesn’t use a DHCP server to handle the IPv6 addresses. When a bunch generates an IPv6 tackle, it should confirm that it’s distinctive. The host will ship an ICMPv6 Neighbor Solicitation message with its personal IPv6 tackle because the goal. So long as no different system responds with a Neighbor Commercial message, then the tackle is exclusive.

14. What’s used within the EUI-64 course of to create an IPv6 interface ID on an IPv6 enabled interface?

the MAC tackle of the IPv6 enabled interface
a randomly generated 64-bit hexadecimal tackle
an IPv6 tackle that’s offered by a DHCPv6 server
an IPv4 tackle that’s configured on the interface

The EUI-64 course of makes use of the MAC tackle of an interface to assemble an interface ID (IID). As a result of the MAC tackle is barely 48 bits in size, 16 further bits (FF:FE) should be added to the MAC tackle to create the total 64-bit interface ID.

15. What two strategies can be utilized to generate an interface ID by an IPv6 host that’s utilizing SLAAC? (Select two.)

EUI-64
random technology
stateful DHCPv6
DAD
ARP

A bunch that’s utilizing SLAAC has two means to configure an interface ID: EUI-64 and random technology by the host working system.

16. Consult with the exhibit. Based mostly on the output that’s proven, what sort of IPv6 addressing is being configured?

SLAAC
stateful DHCPv6
stateless DHCPv6
static link-local

Stateful DHCPv6 swimming pools are configured with tackle prefixes for hosts by way of the tackle command, whereas stateless DHCPv6 swimming pools usually solely include info equivalent to DNS server addresses and the area identify. RA messages which are despatched from routers which are configured as stateful DHCPv6 servers have the M flag set to 1 with the command ipv6 nd managed-config-flag, whereas stateless DHCPv6 servers are indicated by setting the O flag to 1 with the ipv6 nd other-config-flag command.

17. What’s the results of a community technician issuing the command ip dhcp excluded-address 10.0.15.1 10.0.15.15 on a Cisco router?

The Cisco router will exclude solely the ten.0.15.1 and 10.0.15.15 IP addresses from being leased to DHCP purchasers.
The Cisco router will robotically create a DHCP pool utilizing a /28 masks.
The Cisco router will permit solely the required IP addresses to be leased to purchasers.
The Cisco router will exclude 15 IP addresses from being leased to DHCP purchasers.
The ip dhcp excluded-address command is adopted by the primary and the final addresses to be excluded from being leased to DHCP purchasers.

18. Consult with the exhibit. What ought to be carried out to permit PC-A to obtain an IPv6 tackle from the DHCPv6 server?

Add the ipv6 dhcp relay command to interface Fa0/0.
Configure the ipv6 nd managed-config-flag command on interface Fa0/1.
Change the ipv6 nd managed-config-flag command to ipv6 nd other-config-flag.
Add the IPv6 tackle 2001:DB8:1234:5678::10/64 to the interface configuration of the DHCPv6 server.

Consumer DHCPv6 messages are despatched to a multicast tackle with link-local scope, which implies that the messages won’t be forwarded by routers. As a result of the shopper and server are on totally different subnets on totally different interfaces, the message won’t attain the server. The router could be configured to relay the DHCPv6 messages from the shopper to the server by configuring the ipv6 dhcp relay command on the interface that’s related to the shopper.

19. Consult with the exhibit. A community administrator is implementing stateful DHCPv6 operation for the corporate. Nevertheless, the purchasers are usually not utilizing the prefix and prefix-length info that’s configured within the DHCP pool. The administrator points a present ipv6 interface command. What may very well be the reason for the issue?

No digital link-local tackle is configured
The Duplicate Handle Detection characteristic is disabled
The router is configured for SLAAC DHCPv6 operation
The router is configured for stateless DHCPv6 operation

The router is configured for stateless DHCPv6 operation, which is proven by the final two traces of the present command output. Hosts will configure their IPv6 addresses by utilizing the prefix info that’s offered by RA messages. They may also receive further configuration info from a DHCPv6 server. The “No digital link-local tackle” possibility and the “Duplicate Handle Detection” possibility are irrelevant to DHCP configuration. Choice “SLAAC configuration” is inaccurate as a result of by definition SLAAC will use solely the knowledge that’s offered by RA messages to configure IPv6 settings.

20. Consult with the exhibit. A community administrator is implementing the stateless DHCPv6 operation for the corporate. Shoppers are configuring IPv6 addresses as anticipated. Nevertheless, the purchasers are usually not getting the DNS server tackle and the area identify info configured within the DHCP pool. What may very well be the reason for the issue?

The GigabitEthernet interface just isn’t activated
The router is configured for SLAAC operation
The DNS server tackle just isn’t on the identical community because the purchasers are on
The purchasers can’t talk with the DHCPv6 server, evidenced by the variety of lively purchasers being 0

The router is configured for SLAAC operation as a result of there isn’t a configuration command to vary the RA M and O flag worth. By default, each M and O flags are set to 0. In an effort to permint stateless DHCPv6 operation, the interface command ipv6 nd other-config-flag ought to be issued. The GigabitEthernet interface is in working situation as a result of purchasers can get RA messages and configure their IPv6 addresses as anticipated. Additionally, the truth that R1 is the DHCPv6 server and purchasers are getting RA messages signifies that purchasers can talk with the DHCP server. The variety of lively purchasers is 0 as a result of the DHCPv6 server doesn’t keep the state of purchasers IPv6 addresses (it’s not configured for stateful DHCPv6 operation). The DNS server tackle problem just isn’t related to the issue.

21. Fill within the clean. Don’t abbreviate
Kind a command to exclude the primary fifteen useable IP addresses from a DHCPv4 tackle pool of the community 10.0.15.0/24.
Router(config)# ip dhcp
Right Reply: excluded-address 10.0.15.1 10.0.15.15

The ip dhcp excluded-address command should be adopted by the primary and the final addresses to be excluded.

22. Order the steps of configuring a router as a DHCPv4 Server. (Not all choices are used.)

23. Match the descriptions to the corresponding DHCPv6 server sort. (Not all choices are used.)

Place the choices within the following order:
[+] enabled in RA messages with the ipv6 nd other-config-flag command
[+] purchasers ship solely DHCPv6 INFORMATION-REQUEST messages to the server
[+] enabled on the shopper with the ipv6 tackle autoconfig command
[#] the M flag is about to 1 in RA messages
[#] makes use of the tackle command to create a pool of addresses for purchasers
[#] enabled on the shopper with the ipv6 tackle dhcp command[+] Order doesn’t matter inside this group.
[#] Order doesn’t matter inside this group.

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24. A router is taking part in an OSPFv2 area. What is going to all the time occur if the useless interval expires earlier than the router receives a whats up packet from an adjoining DROTHER OSPF router?

OSPF will run a brand new DR/BDR election.
SPF will run and decide which neighbor router is “down”.
A brand new useless interval timer of 4 occasions the whats up interval will begin.
OSPF will take away that neighbor from the router link-state database.

Clarification: On Cisco routers the default useless interval is 4 occasions the whats up interval, and this timer has expired on this case. SPF doesn’t decide the state of neighbor routers; it determines which routes turn into routing desk entries. A DR/DBR election won’t all the time robotically run; this relies on the kind of community and on whether or not or not the router now not up was a DR or BDR.

25. Which three statements describe the similarities between OSPFv2 and OSPFv3? (Select three.)

They each are link-state protocols.
They each use the worldwide tackle because the supply tackle when sending OSPF messages.
They each share the idea of a number of areas.
They each help IPsec for authentication.
They each use the identical DR/BDR election course of.
They each have unicast routing enabled by default.

26. Which OSPF element is similar in all routers in an OSPF space after convergence?

adjacency database
link-state database
routing desk
SPF tree

27. Which three statements describe options of the OSPF topology desk? (Select three.)

It’s a link-state database that represents the community topology.
Its contents are the results of operating the SPF algorithm.
When converged, all routers in an space have similar topology tables.
The topology desk incorporates possible successor routes.
The desk could be considered by way of the present ip ospf database command.
After convergence, the desk solely incorporates the bottom price route entries for all recognized networks.

Clarification: The topology desk on an OSPF router is a link-state database (LSDB) that lists details about all different routers within the community, and represents the community topology. All routers inside an space have similar link-state databases, and the desk could be considered utilizing the present ip ospf database command. The EIGRP topology desk incorporates possible successor routes. This idea just isn’t utilized by OSPF. The SPF algorithm makes use of the LSDB to provide the distinctive routing desk for every router which incorporates the bottom price route entries for recognized networks.

28. What’s used to create the OSPF neighbor desk?

adjacency database
link-state database
forwarding database
routing desk

Clarification: The adjacency database is used to create the OSPF neighbor desk. The link-state database is used to create the topology desk, and the forwarding database is used to create the routing desk.

29. What’s a perform of OSPF whats up packets?

to ship particularly requested link-state data
to find neighbors and construct adjacencies between them
to make sure database synchronization between routers
to request particular link-state data from neighbor routers

30. Which OPSF packet incorporates the several types of link-state commercials?

31. What are the 2 functions of an OSPF router ID? (Select two.)

to facilitate the institution of community convergence
to uniquely establish the router inside the OSPF area
to facilitate the transition of the OSPF neighbor state to Full
to facilitate router participation within the election of the designated router
to allow the SPF algorithm to find out the bottom price path to distant networks

32. What’s the first criterion utilized by OPSF routers to elect a DR?

highest precedence
highest IP tackle
highest router ID
highest MAC tackle

Clarification: When electing a DR, the router with the best OSPF precedence turns into the DR. If all routers have the identical precedence, then the router with the best router ID is elected.

33. Which wildcard masks could be used to promote the 192.168.5.96/27 community as a part of an OSPF configuration?

0.0.0.32
0.0.0.31
255.255.255.224
255.255.255.223

34. What are two causes that may stop two routers from forming an OSPFv2 adjacency? (Select two.)

a mismatched Cisco IOS model that’s used
mismatched OSPF Hey or Useless timers
mismatched subnet masks on the hyperlink interfaces
use of personal IP addresses on the hyperlink interfaces
one router connecting to a FastEthernet port on the change and the opposite connecting to a GigabitEthernet port

35. Consult with the exhibit. A community administrator issued the command present ip ospf interface on the router R2. What conclusion could be drawn?

R2 is connecting to a point-to-point community.
R2 has not shaped an adjacency with some other router.
R2 is configured with the OSPF router-id command.
R2 just isn’t configured with default Hey and Useless timer values.

Clarification: From the consequence proven, R2 has not shaped an adjacency with some other router on the community, as a result of the community that R2 connects is BROADCAST, however no BDR is on the community. The Hey timer worth 10 and Useless timer worth 40 are default OSPF timers for a multiaccess community. The router ID for R2 is set by the loopback 0 interface, not the router-id command.

36. What command could be used to find out if a routing protocol-initiated relationship had been made with an adjoining router?

ping
present ip protocols
present ip ospf neighbor
present ip interface transient

37. Which OSPFv3 perform works in another way from OSPFv2?

metric calculation
whats up mechanism
OSPF packet varieties
authentication
election course of

38. Which three addresses may very well be used because the vacation spot tackle for OSPFv3 messages? (Select three.)

FE80::1
FF02::5
FF02::6
FF02::A
FF02::1:2
2001:db8:cafe::1

39. What does a Cisco router use robotically to create link-local addresses on serial interfaces when OSPFv3 is carried out?

the best MAC tackle obtainable on the router, the FE80::/10 prefix, and the EUI-48 course of
the FE80::/10 prefix and the EUI-48 course of
the MAC tackle of the serial interface, the FE80::/10 prefix, and the EUI-64 course of
an Ethernet interface MAC tackle obtainable on the router, the FE80::/10 prefix, and the EUI-64 course of

40. A community administrator enters the command ipv6 router ospf 64in international configuration mode. What’s the results of this command?

The router can be assigned an autonomous system variety of 64.
The router can be assigned a router ID of 64.
The reference bandwidth can be set to 64 Mb/s.
The OSPFv3 course of can be assigned an ID of 64.

41. Single space OSPFv3 has been enabled on a router by way of the ipv6 router ospf 20 command. Which command will allow this OSPFv3 course of on an interface of that router?

ipv6 ospf 0 space 0
ipv6 ospf 20 space 20
ipv6 ospf 0 space 20
ipv6 ospf 20 space 0

42. Which command will confirm {that a} router that’s operating OSPFv3 has shaped an adjacency with different routers in its OSPF space?

present running-configuration
present ipv6 ospf neighbor
present ipv6 route ospf
present ipv6 interface transient

43. Fill within the clean. Don’t use abbreviations.
To shortly confirm OSPFv3 configuration info together with the OSPF course of ID, the router ID, and the interfaces enabled for OSPFv3, it’s worthwhile to problem the command present ipv6 protocols

44. Fill within the clean.
The election of a DR and a BDR takes place on networks, equivalent to Ethernet networks. multiaccess

45. Fill within the clean.
OSPF makes use of price as a metric.

46. Match the knowledge to the command that’s used to acquire the knowledge. (Not all choices are used.)

Query

47. Open the PT Exercise. Carry out the duties within the exercise directions after which full the duty. What message is displayed on www.ciscoville.com?

Completed!
Completion!
Success!
Converged!

48. Which criterion is most well-liked by the router to decide on a router ID?

the IP tackle of the best configured loopback interface on the router
the IP tackle of the best lively interface on the router
the router-id rid command
the IP tackle of the best lively OSPF-enabled interface

49. Which command ought to be used to verify the OSPF course of ID, the router ID, networks the router is promoting, the neighbors the router is receiving updates from, and the default administrative distance?

present ip protocols
present ip ospf neighbor
present ip ospf
present ip ospf interface

50. A community administrator enters the command ipv6 router ospf 64 in international configuration mode. What’s the results of this command?

The router can be assigned an autonomous system variety of 64.
The router can be assigned a router ID of 64.
The reference bandwidth can be set to 64 Mb/s.
The OSPFv3 course of can be assigned an ID of 64.

51. When a community engineer is configuring OSPFv3 on a router, which command would the engineer problem instantly earlier than configuring the router ID?

ipv6 ospf 10 space 0
ipv6 router ospf 10
interface serial 0/0/1
clear ipv6 ospf course of

52. Which command will present info particular to OSPFv3 routes within the routing desk?

present ip route ospf
present ip route
present ipv6 route
present ipv6 route ospf

53. Fill within the clean.
The election of a DR and a BDR takes place on multiaccess networks, equivalent to Ethernet networks.

54. Launch PT – Conceal and Save PT. Open the PT Exercise. Carry out the duties within the exercise directions after which full the duty. What message is displayed on www.ciscoville.com?

The right configuration on R1 is:
router ospf 10
community 192.168.2.0 0.0.0.255 space 0
community 10.0.10.0 0.0.0.3 space 0
The right configuration on R2 is:
router ospf 10
community 10.0.10.0 0.0.0.3 space 0
community 10.0.10.4 0.0.0.3 space 0
community 172.16.5.0 0.0.0.255 space 0

Completion!
Converged!
Success!
Completed

55. By order of priority, match the number of router ID for an OSFP-enabled router to the attainable router ID choices. (Not all choices are used.)

Place the choices within the following order:
Third priority -> Loopback interface tackle 10.1.1.1
Fourth priority -> Serial interface tackle 192.168.10.1
– not scored –
First priority -> Configured router ID 1.1.1.1
Second priority -> loopback interface IP tackle 172.16.1.1

56. Match the outline to the time period. (Not all choices are used.)

Place the choices within the following order:
That is the place the main points of the neighboring routers could be discovered. -> adjacency database
That is the algorithm utilized by OSPF. -> Shortest Path First
All of the routers are within the spine space. -> Single-area OSPF
– not scored –
That is the place you could find the topology desk. -> link-state database
– not scored –

57. What’s the first criterion utilized by OSPF routers to elect a DR?

Highest precedence
Highest IP tackle
Highest MAC tackle
Highest router ID

58. What are two causes that may stop routers from forming an OSPFv2 adjacency? (Select two.)

mismatched subnet masks on the hyperlink interfaces
use of personal IP addresses on the hyperlink interfaces
one router connecting to a FastEthernet port on the change and the opposite connecting to a GigabitEthernet port
a mismatched Cisco IOS model that’s used
mismatched OSPF Hey or Useless timers

59. What command could be issued to find out if a routing protocol-initiated relationship has been made with an adjoining router?

present ip protocols
ping
present ip interface transient
present ip ospf neighbor

60. Match the OSPF state with the order wherein it happens. (Not all choices are used.)

Place the choices within the following order:
second state -> Init state
– not scored –
seventh state -> Full state
fifth state -> Change state
first state -> Down state
fourth state -> Exstart state
– not scored –
third state -> Two-way state
sixth state -> Loading state

61. An administrator has configured a DHCPv4 relay router and issued these instructions:

Router(config)# interface g0/0 
Router(config-if)# ip tackle 10.0.1.1 255.255.255.0 
Router(config-if)# no shutdown 
Router(config-if)# exit 
Router(config)# ip dhcp pool RELAY 
Router(dhcp-config)# finish

The purchasers are usually not receiving IP parameters from the DHCPv4 server. What’s a attainable trigger?

The IP tackle is inaccurate for the subnet masks that’s used.
The pool can’t be named ‘RELAY’.
The ip helper-address command is lacking.
The router is configured as a DHCPv4 shopper.

Clarification: This router ought to be configured with the ip helper-address command, adopted with the IP tackle of the DHCPv4 server, as a result of the router is supposed for use as a relay agent. The ip dhcp pool RELAY command simply names the DHCPv4 pool, and it doesn’t allow the relay perform.

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