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lab 2 EIGRP Default Route

發布時間：2025/3/15 编程问答 18 豆豆

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EIGRP發布默認路由的四種方式

Redistributed default route
#R1# router eigrp 100 redistribute static network 10.1.1.1 0.0.0.0no auto-summary ip route 0.0.0.0 0.0.0.0 202.100.1.10
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By using ip summary-address command
#interface FastEthernet1/0ip address 10.1.1.1 255.255.255.0 ip summary-address eigrp 100 0.0.0.0 0.0.0.0 5
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Default route by using ip default-network command
R1(config)#ip default-network 202.100.1.0（寫成主類）這樣就可以把這條路由下發給其它的路由器當做默認路由了使用本命令要滿足以下條件： 1、接口IP地址必須是主類 2、接口必須宣告進EIGRP 3、使用命令下發時也必須寫主類網絡號
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Default route with network 0.0.0.0 command
R1#router eigrp 100network 1.1.1.1 0.0.0.0network 10.1.1.1 0.0.0.0network 0.0.0.0no auto-summaryip route 0.0.0.0 0.0.0.0 FastEthernet0/0（寫下一跳不行，必須寫接口）
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基本網絡配置

R2# interface FastEthernet0/0ip address 10.1.1.10 255.255.255.0 R1# interface FastEthernet0/0ip address 202.100.1.1 255.255.255.0 interface FastEthernet1/0ip address 10.1.1.1 255.255.255.0 ip route 0.0.0.0 0.0.0.0 202.100.1.10 Interne# interface FastEthernet0/0ip address 202.100.1.10 255.255.255.0 ip route 0.0.0.0 0.0.0.0 202.100.1.1

Redistributed default route配置

R1# router eigrp 100 redistribute static network 10.1.1.1 0.0.0.0no auto-summary

驗證

#R2#show ip route Codes: C - connected, S - static, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPF external type 2i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2ia - IS-IS inter area, * - candidate default, U - per-user static routeo - ODR, P - periodic downloaded static routeGateway of last resort is 10.1.1.1 to network 0.0.0.010.0.0.0/24 is subnetted, 1 subnets C 10.1.1.0 is directly connected, FastEthernet0/0 D*EX 0.0.0.0/0 [170/307200] via 10.1.1.1, 00:17:42, FastEthernet0/0 #

Default route By using ip summary-address command配置

R1# router eigrp 100network 10.1.1.1 0.0.0.0no auto-summary interface FastEthernet1/0ip address 10.1.1.1 255.255.255.0 ip summary-address eigrp 100 0.0.0.0 0.0.0.0 5

驗證

R2#show ip route Codes: C - connected, S - static, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPF external type 2i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2ia - IS-IS inter area, * - candidate default, U - per-user static routeo - ODR, P - periodic downloaded static routeGateway of last resort is 10.1.1.1 to network 0.0.0.010.0.0.0/24 is subnetted, 1 subnets C 10.1.1.0 is directly connected, FastEthernet0/0 D* 0.0.0.0/0 [90/284160] via 10.1.1.1, 00:00:05, FastEthernet0/0

Default route by using ip default-network command配置

The EIGRP default route can be created with the ip default-network network-number command. The classful destination network.

the network must either be an EIGRP-derived network in the routing table or be generated using a static route, which has been redistributed into EIGRP
the ip default-network command does not benefit router R1 directly.

R1#router eigrp 100network 10.1.1.1 0.0.0.0network 202.100.1.0no auto-summary ip default-network 202.100.1.0 ip route 0.0.0.0 0.0.0.0 202.100.1.10

驗證

R2#show ip route Codes: C - connected, S - static, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPF external type 2i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2ia - IS-IS inter area, * - candidate default, U - per-user static routeo - ODR, P - periodic downloaded static route Gateway of last resort is 10.1.1.1 to network 202.100.1.0 1.0.0.0/24 is subnetted, 1 subnets D 1.1.1.0 [90/409600] via 10.1.1.1, 00:04:01, FastEthernet0/0 D* 202.100.1.0/24 [90/307200] via 10.1.1.1, 00:00:14, FastEthernet0/0 10.0.0.0/24 is subnetted, 1 subnets C 10.1.1.0 is directly connected, FastEthernet0/0

Default route with network 0.0.0.0 command配置

if the network 0.0.0.0 command is added to the EIGRP configuration, it redistributes a default route as a result of the ip route 0.0.0.0 0.0.0.0 interface command. R1#router eigrp 100 network 1.1.1.1 0.0.0.0network 10.1.1.1 0.0.0.0 network 0.0.0.0 no auto-summary ip route 0.0.0.0 0.0.0.0 FastEthernet0/0

驗證

R2#show ip route Codes: C - connected, S - static, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPF external type 2i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2ia - IS-IS inter area, * - candidate default, U - per-user static routeo - ODR, P - periodic downloaded static route Gateway of last resort is 10.1.1.1 to network 0.0.0.0 1.0.0.0/24 is subnetted, 1 subnets D 1.1.1.0 [90/409600] via 10.1.1.1, 00:10:37, FastEthernet0/0 D 202.100.1.0/24 [90/307200] via 10.1.1.1, 00:00:30, FastEthernet0/010.0.0.0/24 is subnetted, 1 subnets C 10.1.1.0 is directly connected, FastEthernet0/0 D* 0.0.0.0/0 [90/307200] via 10.1.1.1, 00:00:02, FastEthernet0/0

來自為知筆記(Wiz)

轉載于:https://www.cnblogs.com/faerl/p/8253740.html

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