© 2006 Cisco Systems, Inc. All rights reserved. BSCI v Configuring EIGRP Implementing and Verifying EIGRP

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v router eigrp autonomous-system-number Defines EIGRP as the IP routing protocol. All routers in the internetwork that must exchange EIGRP routing updates must have the same autonomous system number. Configuring EIGRP network network-number [wildcard-mask] Identifies attached networks participating in EIGRP. The wildcard-mask is an inverse mask used to determine how to interpret the address. The mask has wildcard bits, where 0 is a match and 1 is dont care. Router(config)# Router(config-router)#

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v bandwidth kilobits Defines the interfaces bandwidth for the purposes of sending routing update traffic. Configuring EIGRP (Cont.) Router(config-if)#

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v Network is not configured on router A, because it is not directly connected to router A. Configuring EIGRP for IP

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v Using the Wildcard Mask in EIGRP

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v Using and Configuring the ip default- network Command for EIGRP

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v Example EIGRP Configuration

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v R2 EIGRP Configuration interface FastEthernet0/0 ip address interface Serial0/0/1 bandwidth 64 ip address router eigrp 100 network network

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v Verifying EIGRP: show ip eigrp neighbors R1#show ip eigrp neighbors IP-EIGRP neighbors for process 100 H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num Se0/0/ :07: R1#

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v Verifying EIGRP: show ip route eigrp R1#show ip route eigrp D /16 [90/ ] via , 00:07:01, Serial0/0/ /16 is variably subnetted, 2 subnets, 2 masks D /16 is a summary, 00:05:13, Null /24 is variably subnetted, 2 subnets, 2 masks D /24 is a summary, 00:05:13, Null0 R1#show ip route Gateway of last resort is not set D /16 [90/ ] via , 00:06:55, Serial0/0/ /16 is variably subnetted, 2 subnets, 2 masks D /16 is a summary, 00:05:07, Null0 C /24 is directly connected, FastEthernet0/ /24 is variably subnetted, 2 subnets, 2 masks C /27 is directly connected, Serial0/0/1 D /24 is a summary, 00:05:07, Null0

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v Verifying EIGRP: show ip protocols R1#show ip protocols Routing Protocol is "eigrp 100" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0 EIGRP maximum hopcount 100 EIGRP maximum metric variance 1 Redistributing: eigrp 100 EIGRP NSF-aware route hold timer is 240s Maximum path: 4 Routing for Networks: / Routing Information Sources: Gateway Distance Last Update (this router) 90 00:09:38 Gateway Distance Last Update :09:40 Distance: internal 90 external 170

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v Verifying EIGRP: show ip eigrp interfaces R1#show ip eigrp interfaces IP-EIGRP interfaces for process 100 Xmit Queue Mean Pacing Time Multicast Pending Interface Peers Un/Reliable SRTT Un/Reliable Flow Timer Routes Fa0/0 0 0/0 0 0/ Se0/0/1 1 0/ /

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v Verifying EIGRP: show ip eigrp topology R1#show ip eigrp topology IP-EIGRP Topology Table for AS(100)/ID( ) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P /27, 1 successors, FD is via Connected, Serial0/0/1 P /24, 1 successors, FD is via Summary ( /0), Null0 P /16, 1 successors, FD is via Summary (28160/0), Null0 P /24, 1 successors, FD is via Connected, FastEthernet0/0 P /16, 1 successors, FD is via ( /28160), Serial0/0/1

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v Verifying EIGRP: show ip eigrp traffic R1#show ip eigrp traffic IP-EIGRP Traffic Statistics for AS 100 Hellos sent/received: 429/192 Updates sent/received: 4/4 Queries sent/received: 1/0 Replies sent/received: 0/1 Acks sent/received: 4/3 Input queue high water mark 1, 0 drops SIA-Queries sent/received: 0/0 SIA-Replies sent/received: 0/0 Hello Process ID: 113 PDM Process ID: 73

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v Summary The configuration commands for basic EIGRP include: –router eigrp autonomous-system –network network-number [wildcard-mask] –bandwidth kilobits The optional wildcard-mask parameter in the network command is an inverse mask used to determine how to interpret the network-number parameter. A wildcard bit of 0 is a match and of 1 is dont care. Create and advertise a default route in an EIGRP AS with the ip default-network network-number command.

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v Summary (Cont.) Use the show ip eigrp neighbors command to verify that the router recognizes its neighbors. Use the show ip route eigrp command to verify that the router recognizes routes from its neighbors. Use the show ip protocols, show ip eigrp interfaces, show ip eigrp neighbors, show ip eigrp topology, and show ip eigrp traffic commands to verify EIGRP operations.

© 2006 Cisco Systems, Inc. All rights reserved. BSCI v