Information Technology Reference
In-Depth Information
Notice that even though the R2 router has a higher router ID than R1, the R2 router has
been set to a state of DRother because the OSPF priority has been set to 0:
R1#
show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
192.168.31.22 0 FULL/DROTHER 00:00:33 192.168.1.2 FastEthernet0/0
Reenable the FastEthernet 0/0 interface on the R3 router.
Step 8.
Notice that an adjacency is formed with the R1 and R2 routers. It can take up to 40 sec-
onds for both the R1 and R2 routers to each send a Hello packet:
R3(config-if)#
no shutdown
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed
state to up
R3(config-if)#
end
%SYS-5-CONFIGI: Configured from console by console
02:37:32: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.31.11 on FastEthernet0/0
from LOADING to FULL, Loading Done
02:37:36: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.31.22 on FastEthernet0/0
from EXCHANGE to FULL, Exchange Done
Use the
show ip ospf interface
command on the R3 router to verify that R3 has become
the BDR.
Step 9.
R3#
show ip ospf interface
FastEthernet0/0 is up, line protocol is up
Internet address is 192.168.1.3/24, Area 0
Process ID 1, Router ID 192.168.31.33, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State BDR, Priority 100
Designated Router (ID) 192.168.31.11, Interface address 192.168.1.1
<output omitted>
Task 8: Document the Router Configurations
On each router, capture the following command output to a text file and save for future reference:
Running configuration
■
Routing table
■
Interface summarization
■
Output from
show ip protocols
■
Task 9: 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 the Internet), reconnect the
appropriate cabling and restore the TCP/IP settings.
