Task 1:
For reference information on configuring hostnames, please refer to:
Lab 35 Configuration and Verification Task 1
Task 2:
Sw1#config t
Enter configuration commands, one per line. End with CNTL/Z.
Sw1(config)#vtp mode transparent
Setting device to VTP TRANSPARENT mode.
Sw1(config)#vlan 4010
Sw1(config-vlan)#name OSPF_VLAN
Sw1(config-vlan)#exit
Sw1(config)#
Sw1(config)#interface fastethernet0/2
Sw1(config-if)#switchport mode access
Sw1(config-if)#switchport access vlan 4010
Sw1(config-if)#no shut
Sw1(config-if)#exit
Sw1(config)#interface fastethernet0/2
Sw1(config-if)#switchport mode access
Sw1(config-if)#switchport access vlan 4010
Sw1(config-if)#no shut
Sw1(config-if)#end
Sw1#
Sw1#show vlan brief
VLAN Name Status Ports
—- ——————————– ——— ——————————-
1 default active Fa0/1, Fa0/4
Fa0/5, Fa0/6, Fa0/7, Fa0/8
Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16
Fa0/17, Fa0/18, Fa0/19, Fa0/20
Fa0/21, Fa0/22, Fa0/23, Fa0/24
Gi0/1, Gi0/2
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
4010 OSPF_VLAN active Fa0/2, Fa0/3
Sw1#
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#int fa0/0
R1(config-if)#ip address 192.168.20.1 255.255.255.252
R1(config-if)#no shut
R1(config-if)#end
R1#
R2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#int fast 0/0
R2(config-if)#ip add 192.168.20.2 255.255.255.252
R2(config-if)#no shut
R2(config-if)#^Z
R2#
R2#
R1#ping 192.168.20.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.20.2, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round-trip min/avg/max = 1/3/4 ms
Task 3:
R2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#router ospf 2
R2(config-router)#network 192.168.20.0 0.0.0.3 area 0
R2(config-router)#^Z
R2#
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#router ospf 1
R1(config-router)#network 192.168.20.0 0.0.0.3 area 0
R1(config-router)#end
R1#
Mar 1 01:53:20.828: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.20.2 on FastEthernet0/0 from LOADING to FULL, Loading Done
R1#show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
192.168.20.2 1 FULL/DR 00:00:37 192.168.20.2 Ethernet0/0
R1#show ip ospf interface fastethernet 0/0
FastEthernet0/0 is up, line protocol is up
Internet Address 192.168.20.1/30, Area 0
Process ID 1, Router ID 192.168.20.1, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State BDR, Priority 1
Designated Router (ID) 192.168.20.2, Interface address 192.168.20.2
Backup Designated router (ID) 192.168.20.1, Interface address 192.168.20.1
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:04
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 192.168.20.2 (Designated Router)
Suppress hello for 0 neighbor(s)
| NOTE: On Broadcast and Non-Broadcast Multi-Access Networks, OSPF elects a Designated Router and a Backup Designated router for the subnet. So when you are verifying OSPF adjacencies on these network types, make sure that the state is either FULL/DR, FULL/BDR, or FULL/DROTHER. The output of the show ip ospf interface command shows that the elected DR is R2: Designated Router (ID) 192.168.20.2, and that R1 is the BDR: Backup Designated router (ID) 192.168.20.1.
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