xxi
ip helper-address............................................................................................................................19-14
Reviewing IP Traffic and Configuring Routes ............................................................................................. 19-15
Purpose ................................................................................................................................................ 19-15
Commands ........................................................................................................................................... 19-15
show ip route ..................................................................................................................................19-15
ip route............................................................................................................................................19-17
ping.................................................................................................................................................19-17
traceroute .......................................................................................................................................19-18
Configuring ICMP Redirects ....................................................................................................................... 19-19
Purpose ................................................................................................................................................ 19-19
Commands ........................................................................................................................................... 19-19
ip icmp redirect enable ...................................................................................................................19-19
show ip icmp redirect......................................................................................................................19-20
Chapter 20: IPv4 Routing Protocol Configuration
Activating Advanced Routing Features ........................................................................................................ 20-1
Configuring RIP ............................................................................................................................................ 20-1
Purpose .................................................................................................................................................. 20-1
RIP Configuration Task List and Commands ......................................................................................... 20-2
router rip ...........................................................................................................................................20-2
ip rip enable......................................................................................................................................20-3
distance ............................................................................................................................................20-3
ip rip send version ............................................................................................................................20-4
ip rip receive version.........................................................................................................................20-5
ip rip authentication-key....................................................................................................................20-5
ip rip message-digest-key.................................................................................................................20-6
no auto-summary..............................................................................................................................20-6
split-horizon poison...........................................................................................................................20-7
passive-interface ..............................................................................................................................20-8
receive-interface...............................................................................................................................20-8
redistribute........................................................................................................................................20-9
Configuring OSPF ...................................................................................................................................... 20-11
Purpose ................................................................................................................................................ 20-11
OSPF Configuration Task List and Commands ................................................................................... 20-11
router id ..........................................................................................................................................20-12
router ospf ......................................................................................................................................20-13
1583compatibility............................................................................................................................20-13
ip ospf enable .................................................................................................................................20-14
ip ospf areaid..................................................................................................................................20-14
ip ospf cost .....................................................................................................................................20-15
ip ospf priority .................................................................................................................................20-15
timers spf........................................................................................................................................20-16
ip ospf retransmit-interval ...............................................................................................................20-17
ip ospf transmit-delay .....................................................................................................................20-17
ip ospf hello-interval........................................................................................................................20-18
ip ospf dead-interval .......................................................................................................................20-18
ip ospf authentication-key...............................................................................................................20-19
ip ospf message digest key md5 ....................................................................................................20-20
distance ospf ..................................................................................................................................20-20
area range ......................................................................................................................................20-21
area stub.........................................................................................................................................20-22
area default cost.............................................................................................................................20-23
area nssa........................................................................................................................................20-23
area virtual-link ...............................................................................................................................20-24
redistribute......................................................................................................................................20-25