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lab 2 EIGRP Default Route

發(fā)布時間：2025/3/15 编程问答 24 豆豆

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EIGRP發(fā)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(fā)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(fā)時也必須寫主類網(wǎng)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(wǎng)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(zhuǎn)載于:https://www.cnblogs.com/faerl/p/8253740.html

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