Task 1: Build the Network. Task Complete
Step 1 Connect devices
a. Connect the routers as shown in the topology diagram. Refer to the Test Plan in Lab 8.2.2 for cabling
required.
b. For each of the routers to be configured, use the erase startup-config and the reloadcommands from the privileged EXEC prompt, to ensure that you are starting with a clean configuration.
Task 2: Configure Router ISPX as a Backup. Task Complete
Step 1: Perform basic configuration of the ISPX router
Connect a PC to the console port of the router to perform configurations using a terminal emulation
program.
Configure the router with hostname, passwords, message-of-the–day, and no ip domain lookup.
Router(config)#hostname ISPX
ISPX(config)#line console 0
ISPX(config-line)#password cisco
ISPX(config-line)#login
ISPX(config-line)#exit
ISPX(config)#line vty 0 4
ISPX(config-line)#password cisco
ISPX(config-line)#login
ISPX(config-line)#exit
ISPX(config)#enable password cisco
ISPX(config)#enable secret class
ISPX(config)#no ip domain-lookup
ISPX(config)#banner motd #Unauthorized use prohibited#
Step 2: Configure ISPX router FastEthernet interfaces
Configure the FastEthernet interfaces for the backup links to the Edge2 and BR3 routers. Configure a
description and the IP address, and activate each interface.
Step 3: Configure a static route on the ISPX router to the FilmCompany local network
On the ISPX router, configure a normal static route to the BR3 network 172.18.225.0/25 via the Fa0/0
interface on BR3.
Step 4: Configure a static route on the ISPX router to the stadium local network
On the ISPX router, configure a normal static route to the Edge2 network 172.18.3.0/24 via the Fa0/1
interface on Edge2.
Task 3: Configure the Stadium Edge2 Router. Task Complete:
Step 1: Perform basic configuration of the router
Connect a PC to the console port of the router to perform configurations using a terminal emulation program. Erase and reload the router before starting.
Configure the router with a hostname, passwords, message-of-the–day, and no ip domain lookup.
Step 2: Configure stadium router Edge2 interfaces
Configure the Serial 0/1/1 interface with Frame Relay encapsulation. Configure a point-to-point
subinterface for DLCI 110.
Edge2(config)#interface serial0/1/1
Edge2(config-if)#description primary link to BR3
Edge2(config-if)#encapsulation frame-relay
Edge2(config-if)#no shutdown
Edge2(config-if)#interface serial0/1/1.110 point-to-point
Edge2(config-subif)#ip address 172.18.0.9 255.255.255.252
Edge2(config-subif)#frame-relay interface-dlci 110
Edge2(config-fr-dlci)#end
Configure FastEthernet 0/0 interface for the stadium LAN network 172.18.3.0/24.
Configure FastEthernet 0/1 interface for the backup link to the ISPX router per the topology diagram.
Step 3: Configure a dynamic routing protocol on stadium router Edge2
On Edge2, configure the EIGRP routing protocol to advertise the 172.18.3.0/24 network and the
172.18.0.8/30 network. Use EIGRP process ID 10. Disable auto-summary.
Configure EIGRP MD5 authentication to accept updates from the FilmCompany router BR3 on the Frame Relay subinterface.
Sample steps to configure EIGRP authentication are:
Edge2#configure terminal
Edge2(config)#key chain MYCHAIN
Edge2(config-keychain)#key 1
Edge2(config-keychain-key)#key-string securetraffic
Edge2(config-keychain-key)#exit
Edge2(config)#interface serial 0/1/1.110
Edge2(config-subif)#ip authentication mode eigrp 10 md5
Edge2(config-subif)#ip authentication key-chain eigrp 10 MYCHAIN
Edge2(config-subif)#end
Edge2#
Until EIGRP and MD5 configuration are complete on router BR3, no EIGRP updates will be received.
The debug eigrp packet command can be used to view the EIGRP exchange as it is occurring
between the routers.
Task 4: Configure the FilmCompany BR3 Router. Task Complete:
Step 1: Perform basic configuration of the router
Connect a PC to the console port of the router to perform configurations using a terminal emulation
program. Erase and reload the router before starting.
Configure the router with a hostname, passwords, message-of-the–day, and no ip domain lookup.
Step 2: Configure router BR3 interfaces
Configure Serial 0/1/0 interface with Frame Relay encapsulation. Configure a point-to-point
subinterface for DLCI 100.
BR3(config)#interface serial0/1/0
BR3(config-if)#description primary link to Edge2
BR3(config-if)#encapsulation frame-relay
BR3(config-if)#no shutdown
BR3(config-if)#interface serial0/1/0.100 point-to-point
BR3(config-subif)#ip address 172.18.0.10 255.255.255.252
BR3(config-subif)#frame-relay interface-dlci 100
BR3(config-fr-dlci)#end
Configure FastEthernet 0/1 interface for the FilmCompany LAN network 172.18.225.0/25.
Configure FastEthernet 0/0 interface for the backup link to the ISPX router per the topology diagram.
Step 3: Configure the dynamic routing protocol on router BR3
On BR3, configure the EIGRP routing protocol to advertise the 172.18.225.0/25 network and the
172.18.0.8/30 network. Use EIGRP process ID 10. Disable auto-summary.
Configure EIGRP MD5 authentication to accept routing updates from the Edge2 router on interface
serial0/1/0.100.
BR3#configure terminal
BR3(config)#key chain MYCHAIN
BR3(config-keychain)#key 1
BR3(config-keychain-key)#key-string securetraffic
BR3(config-keychain-key)#exit
BR3(config)#interface serial 0/1/0.100
BR3(config-subif)#ip authentication mode eigrp 10 md5
BR3(config-subif)#ip authentication key-chain eigrp 10 MYCHAIN
BR3(config-subif)#end
When authentication is configured, both Edge2 and BR3 should begin accepting EIGRP updates. Use
the show ip route command to verify that the routes to the LAN devices have been learned.
Until EIGRP and MD5 configuration are complete on router BR3, no EIGRP updates will be received
successfully. The command debug eigrp packet shows when EIGRP authentication is
successful. Example output of the debug eigrp packet command once BR3 is correctly
configured is shown below:
BR3#debug eigrp packet
00:47:04: EIGRP: received packet with MD5 authentication, key id = 1
00:47:04: EIGRP: Received HELLO on Serial0/1/0.100 nbr 172.18.0.9
Task 5: Conduct Primary Frame Relay Link Testing Based on the Test Plan. Task
Complete:
Execute the procedures outlined in Test 1 to test the simulated Frame relay network. Record the results of the tests in the Test 1: Results and Conclusions section.
Step 1: Console into routers Edge2 and BR3 and verify the basic configuration, IP addressing, Frame Relay
Issue the show running-config command for each of the routers to verify passwords, IP addressing, and Frame Relay configuration. See end of lab for router configs.
Step 2: Verify the Frame Relay configuration on Edge2, BR3, and FR1
Use show frame-relay commands to verify the Frame Relay configurations. See Lab 8.2.4 for command output.
show frame-relay map – Status of point-to-point links
show frame-relay pvc – Permanent Virtual Circuit (PVC) status and statistics
show frame-relay lmi – Local Management Interface (LMI) statistics
show frame-relay route – DLCI/interface routing (FR1 switch only)
Step 3: Verify routing table contents on router Edge2
Display the routing table for Edge2 using the show ip route command.
Edge2#sh ip route
Codes: C – connected, S – static, R – RIP, M – mobile, B – BGP
D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area
N1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2
E1 – OSPF external type 1, E2 – OSPF external type 2
i – IS-IS, su – IS-IS summary, L1 – IS-IS level-1, L2 – IS-IS
level-2
ia – IS-IS inter area, * – candidate default, U – per-user static
route
o – ODR, P – periodic downloaded static route
Gateway of last resort is not set
172.18.0.0/16 is variably subnetted, 4 subnets, 3 masks
C 172.18.0.248/30 is directly connected, FastEthernet0/1
D 172.18.225.0/25
[90/2172416] via 172.18.0.10, 00:09:33, Serial0/0/1.110
C 172.18.0.8/30 is directly connected, Serial0/0/1.110
C 172.18.3.0/24 is directly connected, FastEthernet0/0
Is there an EIGRP route to the FilmCompany LAN 172.18.225.0/25?
Ya
What is the AD of this route?
90
What is the next hop IP address to get to this network?
172.18.0.10 (F/R link)
Does the primary route take the Frame Relay link?
Ya
Step 4: Verify routing table contents on router BR3
Display the routing table for BR3 using the show ip route command.
BR3#sh ip route
Codes: C – connected, S – static, R – RIP, M – mobile, B – BGP
D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area
N1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2
E1 – OSPF external type 1, E2 – OSPF external type 2
i – IS-IS, su – IS-IS summary, L1 – IS-IS level-1, L2 – IS-IS
level-2
ia – IS-IS inter area, * – candidate default, U – per-user static
route
o – ODR, P – periodic downloaded static route
Gateway of last resort is not set
172.18.0.0/16 is variably subnetted, 4 subnets, 3 masks
C 172.18.225.0/25 is directly connected, FastEthernet0/1
C 172.18.225.248/30 is directly connected, FastEthernet0/0
C 172.18.0.8/30 is directly connected, Serial0/0/0.100
D 172.18.3.0/24 [90/2172416] via 172.18.0.9, 00:11:59,
Serial0/0/0.100
Is there an EIGRP route to the Edge2 network 172.18.3.1/24?
Ya
What is the AD of this route?
90
Step 5: Verify routing table contents on router ISPX
Display the routing table for ISPX using the show ip route command.
ISPX#show ip route
Codes: C – connected, S – static, R – RIP, M – mobile, B – BGP
D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area
N1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2
E1 – OSPF external type 1, E2 – OSPF external type 2
i – IS-IS, su – IS-IS summary, L1 – IS-IS level-1, L2 – IS-IS
level-2
ia – IS-IS inter area, * – candidate default, U – per-user
static route
o – ODR, P – periodic downloaded static route
Gateway of last resort is not set
172.18.0.0/16 is variably subnetted, 4 subnets, 3 masks
C 172.18.0.248/30 is directly connected, FastEthernet0/1
S 172.18.225.0/25 [1/0] via 172.18.225.249
C 172.18.225.248/30 is directly connected, FastEthernet0/0
S 172.18.3.0/24 [1/0] via 172.18.0.249
Are there any EIGRP routes?
Tidak
Why or why not?
ISPX router tidak menjalankan protokol EIGRP.
Are there any static routes and if so, to what network?
Ya, pada BR3 LAN network 172.18.225.0/25 dan pada Edge2 LAN network 172.18.3.0/24
What is the purpose of these static routes?
Menyediakan rute dari Edge2 untuk LAN BR3 melalui router ISPX. Jika ISP tidak akan tahu bagaimana untuk sampai ke sana.
Step 6: Test IP connectivity between routers Edge2 and BR3 via the primary Frame Relay link
Ping from Edge2 to the IP address of host PC2. Was the ping successful?
Ya
If not, troubleshoot until successful.
Ping from BR3 to the IP address of host PC1.
Was the ping successful?
Ya
If not, troubleshoot until successful.
Verify that traffic is taking the correct path by using the traceroute command.
Turn off all debugging using the undebug all command.
Record all results in the WAN Design Test Plan document in the Test 1: Results and Conclusions section.
Perform Test 2: Backup Link Configuration Test
Task 6: Configure floating static routes. Task Complete:
Step 1: Configure a floating static route on Edge2 and BR3 via the primary Frame Relay link.
On Edge2, configure a static route to the FilmCompany LAN (172.18.225.0/25) using the next hop
address of the interface Fa0/1 on router ISPX. Configure the administrative distance on the floating
static routes to be 130, greater than the administrative distance of the EIGRP learned route.
On BR3, configure a static route to the stadium LAN (172.18.3.0/24) using the next hop address of
the interface Fa0/0 on router ISPX. Configure the administrative distance on the floating static route
to be 130, greater than the administrative distance of the EIGRP learned route.
Task 7: Conduct Backup Link Test. Task Complete:
Step 1: Test the backup link though the ISPX router by taking down the primary Frame Relay link
Cause the Frame Relay link from Edge2 to FR1 to fail by shutting down the Serial 0/1/1 interface.
Step 2: Verify routing table contents on router Edge2
Display the routing table for Edge2 using the show ip route command.
Edge2#sh ip route
Codes: C – connected, S – static, R – RIP, M – mobile, B – BGP
D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area
N1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2
E1 – OSPF external type 1, E2 – OSPF external type 2
i – IS-IS, su – IS-IS summary, L1 – IS-IS level-1, L2 – IS-IS
level-2
ia – IS-IS inter area, * – candidate default, U – per-user
static route
o – ODR, P – periodic downloaded static route
Gateway of last resort is not set
172.18.0.0/16 is variably subnetted, 3 subnets, 3 masks
C 172.18.0.248/30 is directly connected, FastEthernet0/1
S 172.18.225.0/25 [130/0] via 172.18.0.250
C 172.18.3.0/24 is directly connected, FastEthernet0/0
Is there an EIGRP route to the FilmCompany network 172.18.225.0/25 now?
Tidak
Is the floating static backup route to the FilmCompany network 172.18.225.0/25 that you defined
earlier now present?
Ya
What is the AD of this route?
130
What is the next hop IP address to get to the 172.18.225.0/25 network?
172.18.0.250 (ISPX Fa0/1 link)
Does the backup route take the ISPX link?
Ya
Step 3: Verify routing table contents on router BR3
Display the routing table for BR3 using the show ip route command.
BR3#sh ip route
Codes: C – connected, S – static, R – RIP, M – mobile, B – BGP
D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area
N1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2
E1 – OSPF external type 1, E2 – OSPF external type 2
i – IS-IS, su – IS-IS summary, L1 – IS-IS level-1, L2 – IS-IS
level-2
ia – IS-IS inter area, * – candidate default, U – per-user static
route
o – ODR, P – periodic downloaded static route
Gateway of last resort is not set
172.18.0.0/16 is variably subnetted, 3 subnets, 3 masks
C 172.18.225.0/25 is directly connected, FastEthernet0/1
C 172.18.225.248/30 is directly connected, FastEthernet0/0
S 172.18.3.0/24 [130/0] via 172.18.225.250
Continue to issue the show ip route command until the EIGRP route is gone and the floating
static route is installed, otherwise ping responses (echo reply) cannot be sent back to Edge2.
Is there an EIGRP route to the Edge2 network 172.18.3.0/24?
Tidak
Is there a floating static route?
Ya
What is the AD of this route?
130
What is the next hop IP address to get to the 172.18.3.0/24 network?
172.18.225.250 (ISPX Fa0/0)
Step 4: Test IP connectivity between routers Edge2 and BR3 via the backup Ethernet link
a. Ping from PC1 on Edge2 to the IP address of host PC2.
Was the ping successful?
Ya
If not, troubleshoot until successful.
Verify that traffic is taking the backup link by using the tracert command from PC1 to PC2. Record the results in the WAN Design Test Plan section Test 2: Results and Conclusions.
Turn off any debugging using the undebug all command.
Step 5: Clean up
Erase the configurations and reload the routers. Disconnect and store the cabling. For PC hosts that are
normally connected to other networks (such as the school LAN or to the Internet), reconnect the
appropriate cabling and restore the TCP/IP settings.
Task 8: Reflection / Challenge
When is it most important to have a backup link? How does a backup link compare to a redundant link?
Link Backup diperlukan ketika hilangnya link primer yang akan menyebabkan hilangnyaakses ke sumber daya kritis. Ini adalah biaya / resiko keputusan yang dibuat oleh sebuah organisasi.
This lab uses the RIP dynamic routing protocol and floating static routes to demonstrate primary and backup routes. Would it be possible to use all static routes and no dynamic routing protocol?
Ya, tapi rute statis untuk semua lokasi jaringan harus ditetapkan untuk komunikasi end-to-end
antara jaringan. Harus ada rute untuk mencapai tujuan jaringan dan rute di tempat tujuan untuk kembali, agar komunikasi dua arah terjadi.
antara jaringan. Harus ada rute untuk mencapai tujuan jaringan dan rute di tempat tujuan untuk kembali, agar komunikasi dua arah terjadi.
Tidak ada komentar:
Posting Komentar