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CCNA 4 Skills-Based Assessment
Notes to Students Review the following points before the start of the lab exam: •
Router interfaces may differ depending on the model. For example, on some routers Serial 0 may be Serial 0/0 and Ethernet 0 may be FastEthernet 0/0.
•
Total exam time is 75 minutes. 15 minutes to read the entire lab exam, and 60 minutes to configure all the requirements.
Objectives Complete the following tasks throughout the exam: •
Configure Frame Relay
•
Configure PPP
•
Configure EIGRP
•
Configure DHCP
•
Configure NAT
•
Configure static routes
•
Verify connectivity
Preconfigurations The following items have been preconfigured on all three routers:
1-5
•
Hostnames on all routers
•
Interface IP addresses, subnet masks, and no shutdown commands
•
Console, vty, aux, and privileged passwords
•
Clock rates on DCE interfaces
CCNA 4: WAN Technologies v 3.1 – Skills-Based Assessment
Copyright
2003, Cisco Systems, Inc.
Following are the actual commands already configured on the devices:
ISP Router hostname ISP enable secret class interface ethernet0 ip address 10.10.0.1 255.255.0.0 no shutdown interface serial0 ip address 192.168.1.5 255.255.255.252 clock rate 64000 no keepalive no shutdown line con 0 password cisco login logging synchronous exec-timeout 0 0 line vty 0 4 password cisco login line aux 0 password cisco login
Sydney Router hostname Sydney enable secret class interface serial0 ip address 192.168.1.6 255.255.255.252 no keepalive no shutdown interface serial1 ip address 192.168.2.1 255.255.255.252 clock rate 64000 no shutdown interface ethernet0 ip address 172.16.4.1 255.255.255.0 no shutdown line con 0 password cisco login logging synchronous exec-timeout 0 0 line vty 0 4 password cisco login line aux 0 password cisco login
2-5
CCNA 4: WAN Technologies v 3.1 – Skills-Based Assessment
Copyright
2003, Cisco Systems, Inc.
Auckland Router hostname Auckland enable secret class interface serial0 ip address 192.168.2.2 255.255.255.252 no shutdown interface ethernet0 ip address 172.16.15.1 255.255.255.0 no shutdown line con 0 password cisco login logging synchronous exec-timeout 0 0 line vty 0 4 password cisco login line aux 0 password cisco login
3-5
CCNA 4: WAN Technologies v 3.1 – Skills-Based Assessment
Copyright
2003, Cisco Systems, Inc.
Configuration Tasks Configure Frame Relay Use the following values to configure a Frame Relay connection between ISP and Sydney: •
Use DLCI 101 on ISP and Sydney to configure a Frame Relay connection.
•
Define the Frame Relay encapsulation as IETF on both routers.
•
Configure the Frame Relay link to reflect the proper bandwidth of 64kbps.
•
Assume Inverse-ARP is disabled and configure both ISP and Sydney to statically map the remote IP address to the local DLCI.
•
Configure the LMI type as ANSI on both ISP and Sydney.
Configure PPP Use the following values to configure PPP encapsulation on the serial link between Sydney and Auckland: •
Configure the link between Sydney and Auckland with PPP encapsulation.
•
Configure CHAP authentication on both routers using the password cisco.
Configure EIGRP Use the following values to configure the routing between Sydney and Auckland: •
Configure EIGRP routing between Sydney and Auckland. Enable EIGRP only on the following networks: o
192.168.2.0 255.255.255.252
o
172.16.4.0 255.255.255.0
o
172.16.15.0 255.255.255.0
•
Both Sydney and Auckland should be able to see t he Ethernet network of the neighboring router in its routing table.
•
Configure a default route on Sydney that forwards the default traffic to ISP. Redistribute that default route to Auckland using the command redistribute static after configuring EIGRP. router(config-router)# redistribute static
Configure DHCP Use the following values to ena ble DHCP services on the Ethernet0 LAN of ISP: •
Provide devices on this LAN with the IP addresses from the 10.10.0.0/16 network.
•
Exclude the range of IP addresses 10.10.0.1 through 10.10.0.10
•
Include the default-gateway address of 10.10.0.1
•
Include the DNS server address of 10.10.0.5
Configure NAT Use the following values to configure NAT services on ISP:
4-5
•
Configure NAT on the ISP router to translate the 10.10.0.0/16 inside host IP addresses to the 192.168.100.0/24 outside network address range.
•
Use PAT, so that all addresses are using only the IP addresses of 192.168.100.11 through 192.168.100.20, with a subnet mask of 255.255.255.0.
CCNA 4: WAN Technologies v 3.1 – Skills-Based Assessment
Copyright
2003, Cisco Systems, Inc.
•
Create a static mapping of 192.168.100.1 to ISP Ethernet 0 interface of 10.10.0.1. This will allow other routers to ping the Ethernet 0 interface of ISP with the command ping 192.168.100.1.
Configure static routes Use the following values to configure static routes on ISP to forward traffic to the following networks: •
192.168.2.0
255.255.255.252
•
172.16.4.0
255.255.255.0
•
172.16.15.0
255.255.255.0
Verify connectivity Verify the following connections:
5-5
•
ISP should be able to successfully ping all interfaces on Sydney and Auckland.
•
Sydney should be able to successfully ping all interfaces on ISP and Auckland.
•
Auckland should be able to successfully ping all interfaces on ISP and Auckland.
•
Sydney and Auckland should be able to see the Ethernet network of the neighboring router in its routing table.
CCNA 4: WAN Technologies v 3.1 – Skills-Based Assessment
