Examen Skill Ccna 4

Task 2: Perform Basic Device Configurations

Configure the R1, R2, and R3 routers according to the following guidelines:

Configure the router hostname.

Disable DNS lookup.

Configure an EXEC mode password.

Configure a message-of-the-day banner.

Configure a password for console connections.

Configure synchronous logging.

Configure a password for vty connections.

R1:

Router>enable

Router#configure terminal

Router(config)#hostname R1

R1(config)#banner motd #R1#

R1(config)#no ip domain-lookup

R1(config)#enable secret class

R1(config)#line console 0

R1(config-line)#password cisco

R1(config-line)#login

R1(config-line)#logging synchronous

R1(config-line)#exec-timeout 5

R1(config-line)#exit

R1(config)#line vty 0 4

R1(config-line)#password cisco

R1(config-line)#login

R1(config-line)#logging synchronous

R1(config-line)#exec-timeout 5

R1(config-line)#exit

Task 3: Configure and Activate Serial and Ethernet Addresses

Step 1: Configure interfaces on R1, R2, and R3.

Step 2: Verify IP addressing and interfaces.

Step 3: Configure the PC1 and PC3 Ethernet interfaces.

Step 4: Test connectivity between the PCs and routers

R1(config)#interface fastEthernet0/1

R1(config-if)#ip address 10.0.0.1 255.255.255.128

R1(config-if)#no shutdown

R1(config-if)#exit

R1(config)#interface Serial0/0/0

R1(config-if)#ip address 172.16.0.1 255.255.255.252

R1(config-if)#clock rate 64000

R1(config-if)#no shutdown

R1(config-if)#exit

R1(config)#interface Serial0/0/1

R1(config-if)#ip address 172.16.0.9 255.255.255.252

R1(config-if)#no shutdown

R1(config-if)#end

R1#show ip interface brief

Task 4: Configure Serial Interfaces

Step 1: Configure and verify PPP encapsulation with CHAP authentication between R1 and R2. Thepassword is “cisco”

Step 2: Configure and verify HDLC encapsulation between R2 and R3.

Step 3: Configure Frame Relay between R1 and R3.

R1#configure terminal

R1(config)#username R2 password cisco

R1(config)#interface Serial0/0/0

R1(config-if)#encapsulation ppp

R1(config-if)#ppp authentication chap

R1(config-if)#exitR1(config)#interface Serial0/0/1

R1(config-if)#encapsulation frame-relay

R1(config-if)#frame-relay map ip 172.16.0.9 101 broadcast

R1(config-if)#frame-relay map ip 172.16.0.10 101 broadcast

R1(config-if)#frame-relay interface-dlci 101

R1(config-if)#no keepalive

R1(config-if)#end

R1#show interface Serial0/0/0

R1#show interface Serial0/0/1

R1#show frame-relay pvc

R1#show frame-relay map

Task 5: Configure RIP

Step 1: Configure RIP on R1, R2, and R3.

RIP updates should only be sent on the serial links between the routers. Prevent all other RIP updates on all networks.

Step 2: Test connectivity with the ping command.

Step 3: Verify the routing table with the appropriate command

R1#configure terminal

R1(config)#router rip

R1(config-router)#version 2

R1(config-router)#network 10.0.0.0

R1(config-router)#network 172.16.0.0

R1(config-router)#passive-interface fastEthernet0/1

R1(config-router)#no auto-summary

R1(config-router)#end

R1#show ip protocols

R1#show ip route

Task 7: Configure Access Control Lists

Step 1: Allow telnet to R1 and R3 from R2 only.S

Step 2: Do not allow HTTP, Telnet, and FTP traffic from the Internet to PC1.

Step 3: Do not allow PC1 to receive traffic from the 10.0.0.128 /25 network.

Step 4: Verify that PC3 cannot ping PC1, but can ping 10.0.0.1

R1#configure terminal

R1(config)#access-list 101 permit tcp host 172.16.0.2 any eq 23

R1(config)#access-list 101 permit tcp host 172.16.0.5 any eq 23

R1(config)#access-list 101 deny tcp any any eq 23

R1(config)#access-list

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