1. EIGRP基本配置<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
1.1. 介紹
本文檔描述了EIGRP的基本配置，
1.2. 拓撲圖
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1.3. 配置
1.3.1. R1配置
version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R1 ! boot-start-marker boot-end-marker ! ! no aaa new-model ip cef ! ! interface Loopback0 ip address 1.1.1.1 255.255.255.0 ! interface Loopback1 ip address 1.1.2.1 255.255.255.0 ! interface Loopback2 ip address 1.1.3.1 255.255.255.0 ! interface FastEthernet0/0 ip address 12.1.1.1 255.255.255.0 duplex auto speed auto ! ! ! router eigrp 1 //起一個EIGRP程序。AS号要求一緻 network 1.0.0.0 network 12.1.1.1 0.0.0.0 auto-summary //預設自動彙總
! ! ! ! gatekeeper shutdown ! ! ! end
1.3.2. R2配置
Current configuration : 1006 bytes ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R2 ! boot-start-marker boot-end-marker ! ! no aaa new-model ip cef ! ! ! ! ! multilink bundle-name authenticated ! ! ! ! ! interface FastEthernet0/0 ip address 12.1.1.2 255.255.255.0 duplex auto speed auto ! interface FastEthernet2/0 ip address 23.1.1.2 255.255.255.0 duplex half ! router eigrp 1 network 12.1.1.2 0.0.0.0 network 23.1.1.2 0.0.0.0 auto-summary ! ! ! End
1.3.3. R3配置
R3#sh run Building configuration...
Current configuration : 1057 bytes ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R3 ! boot-start-marker boot-end-marker ! ! no aaa new-model ip cef ! ! ! ! ! multilink bundle-name authenticated ! ! interface Loopback0 ip address 3.3.1.1 255.255.255.0 ! interface Loopback1 ip address 3.3.2.1 255.255.255.0 ! interface Loopback2 ip address 3.3.3.1 255.255.255.0 ! interface FastEthernet2/0 ip address 23.1.1.3 255.255.255.0 duplex half ! ! router eigrp 1 network 3.0.0.0 network 23.0.0.0 auto-summary ! ! ! control-plane ! ! ! end
1.4.R1調試過程
R1#debug eigrp packets query update reply //調試檢視EIGRP的query、update、reply包
*Apr 20 20:38:45.867: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 12.1.1.2 (FastEthernet0/0) is up: new adjacency //形成鄰接關系 *Apr 20 20:38:45.871: EIGRP: Enqueueing UPDATE on FastEthernet0/0 nbr 12.1.1.2 iidbQ un/rely 0/1 peerQ un/rely 0/0 *Apr 20 20:38:45.879: EIGRP: Received UPDATE on FastEthernet0/0 nbr 12.1.1.2 *Apr 20 20:38:45.879: AS 1, Flags 0x1, Seq 18/0 idbQ 0/0 iidbQ un/rely 0/1 peerQ un/rely 0/0 *Apr 20 20:38:45.887: EIGRP: Received UPDATE on FastEthernet0/0 nbr 12.1.1.2 *Apr 20 20:38:45.887: AS 1, Flags 0xA, Seq 19/0 idbQ 0/0 iidbQ un/rely 0/1 peerQ un/rely 0/0 *Apr 20 20:38:45.895: EIGRP: Enqueueing UPDATE on FastEthernet0/0 iidbQ un/rely 0/1 serno 1-6 *Apr 20 20:38:45.919: EIGRP: Enqueueing UPDATE on FastEthernet0/0 nbr 12.1.1.2 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 1-6 *Apr 20 20:38:45.927: EIGRP: Sending UPDATE on FastEthernet0/0 *Apr 20 20:38:45.927: AS 1, Flags 0xA, Seq 2/0 idbQ 0/0 iidbQ un/rely 0/0 serno 1-6 *Apr 20 20:38:45.943: EIGRP: Sending UPDATE on FastEthernet0/0 nbr 12.1.1.2 *Apr 20 20:38:45.943: AS 1, Flags 0x1, Seq 1/18 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/2 *Apr 20 20:38:46.015: EIGRP: Received UPDATE on FastEthernet0/0 nbr 12.1.1.2 *Apr 20 20:38:46.019: AS 1, Flags 0x8, Seq 19/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/2 *Apr 20 20:38:46.035: EIGRP: Sending UPDATE on FastEthernet0/0 nbr 12.1.1.2 *Apr 20 20:38:46.035: AS 1, Flags 0x8, Seq 2/19 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 1-6 *Apr 20 20:38:46.107: EIGRP: Received UPDATE on FastEthernet0/0 nbr 12.1.1.2 *Apr 20 20:38:46.11 R1(config-router)#1: AS 1, Flags 0x8, Seq 20/1 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 *Apr 20 20:38:46.115: EIGRP: Enqueueing UPDATE on FastEthernet0/0 iidbQ un/rely 0/1 serno 7-8 *Apr 20 20:38:46.123: EIGRP: Enqueueing UPDATE on FastEthernet0/0 nbr 12.1.1.2 iidbQ un/rely 0/0 peerQ un/rely 0/0 serno 7-8 *Apr 20 20:38:46.223: EIGRP: Received UPDATE on FastEthernet0/0 nbr 12.1.1.2 *Apr 20 20:38:46.227: AS 1, Flags 0x2, Seq 21/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/2 *Apr 20 20:38:46.231: EIGRP: Received UPDATE on FastEthernet0/0 nbr 12.1.1.2 *Apr 20 20:38:46.231: AS 1, Flags 0x0, Seq 21/2 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/2 *Apr 20 20:38:46.647: EIGRP: Sending UPDATE on FastEthernet0/0 nbr 12.1.1.2 *Apr 20 20:38:46.651: AS 1, Flags 0x8, Seq 4/21 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 1-6
1.5.檢視路由表
1.5.1. R1的路由表
R1#sh ip route Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
1.0.0.0/8 is variably subnetted, 4 subnets, 2 masks C 1.1.1.0/24 is directly connected, Loopback0 D 1.0.0.0/8 is a summary, 00:02:36, Null0 //彙總路由指向了null0，用于防止環路 C 1.1.2.0/24 is directly connected, Loopback1 C 1.1.3.0/24 is directly connected, Loopback2 D 3.0.0.0/8 [90/158720] via 12.1.1.2, 00:02:35, FastEthernet0/0
//因為沒有關閉自動彙總，在經過主類網絡邊界是自動彙總成/8位
D 23.0.0.0/8 [90/30720] via 12.1.1.2, 00:02:35, FastEthernet0/0
12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 12.1.1.0/24 is directly connected, FastEthernet0/0 D 12.0.0.0/8 is a summary, 00:02:35, Null0
1.5.2. R2的路由表
R2#sh ip route Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
D 1.0.0.0/8 [90/156160] via 12.1.1.1, 00:03:17, FastEthernet0/0 D 3.0.0.0/8 [90/156160] via 23.1.1.3, 01:02:35, FastEthernet2/0 23.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 23.1.1.0/24 is directly connected, FastEthernet2/0 D 23.0.0.0/8 is a summary, 01:02:58, Null0 12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 12.1.1.0/24 is directly connected, FastEthernet0/0 D 12.0.0.0/8 is a summary, 01:02:58, Null0
1.5.3. R3的路由表
R3#sh ip route Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
D 1.0.0.0/8 [90/158720] via 23.1.1.2, 00:03:55, FastEthernet2/0 3.0.0.0/8 is variably subnetted, 4 subnets, 2 masks C 3.3.1.0/24 is directly connected, Loopback0 C 3.3.2.0/24 is directly connected, Loopback1 C 3.3.3.0/24 is directly connected, Loopback2 D 3.0.0.0/8 is a summary, 01:03:14, Null0 23.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 23.1.1.0/24 is directly connected, FastEthernet2/0 D 23.0.0.0/8 is a summary, 01:03:14, Null0 D 12.0.0.0/8 [90/30720] via 23.1.1.2, 01:03:13, FastEthernet2/0
轉載于:https://blog.51cto.com/wolfbeing/151755