EIGRP CONFIGURATION

EIGRP Configuration
config)# router  eigrp <AS#>
conf-router)# network  < Net ID> (classlfull)

conf-router)# metric maximum-hop

conf-router)#passive-interface <interface>

conf-router)#distance  eigrp <AS> <internal AD><external AD>

conf-router)#maximum –paths <N>  
conf-router)#variance <#>
conf-router)#traffic-share  < minimum / balanced >
conf-router)# eigrp log-neighbor-changes


conf-router)#no auto-summary  
config-if)# ip summary-address eigrp <AS#>  <Net ID + mask>

config-if)#  bandwidth  < # in Kbps>
config-if)#delay < msec>

config-if)#  ip hello-interval  eigrp <AS#>  < sec >
config-if)#  ip hold-time eigrp <AS#>  < sec >


Show Commands

# sh ip route
# sh ip route eigrp
# sh ip route < Net ID >
# sh ip protocols

# sh ip eigrp traffic
# sh ip eigrp traffic  <AS#>


# sh ip eigrp nei
# sh ip eigrp topology

# sh ip eigrp topology  <AS#> <ip add +mask >  (optional)
# sh ip eigrp topology all-links
# sh ip eigrp topology < active / pending / zero-successors>
# sh ip eigrp traffic
# sh ip eigrp events
#debug ip eigrp
#debug ip eigrp fsm
#debug ip eigrp nei    (Shows the hello packets sent and received to the neighbors)
#debug ip eigrp route  (Shows dynamic changes made on the routing table process)
#debug ip eigrp summary  (Shows a summary of the EIGRP activity)
#debug ip eigrp packet  (Shows the packets sent and received by the router.The packet  types to be monitored can be selected. Up to 11 types are available)
# no debug all  / un all


EIGRP practical
# Router EIGRP 10
# Network 10.0.0.0
# Network 20.0.0.0

No auto-summary command is used to disable the auto summarize
Show ip route EIGRP command is used to see EIGRP related information or route entry in the routers routing table.
Show ip EIGRP Neighbor command is used to see EIGRP neighbor table 
Show ip EIGRP Topology command is used to see EIGRP topology table
Ex:

R1#config t
R1(config)#router eigrp 10
R1(config-router)#network 10.0.0.0

Corp#sh ip route
10.0.0.0/24 is subnetted, 12 subnets
D 10.1.11.0 [90/2172416] via 10.1.5.2, 00:04:57, Serial0/2/0
D 10.1.10.0 [90/2172416] via 10.1.5.2, 00:04:57, Serial0/2/0
D 10.1.9.0 [90/2195456] via 10.1.4.2, 00:04:57, Serial0/1/0
D 10.1.8.0 [90/2195456] via 10.1.4.2, 00:04:57, Serial0/1/0


Here D represents that the route is learned from EIGRP.