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Last update from 10.0.24.2 on FastEthernet0/1, 00:02:09 ago

Routing Descriptor Blocks:

* 10.0.34.3, from 10.0.34.3, 00:02:09 ago, via FastEthernet0/0

Route metric is 435200, traffic share count is 1

Total delay is 7000 microseconds, minimum bandwidth is 10000 Kbit

Reliability 255/255, minimum MTU 1500 bytes

Loading 1/255, Hops 2

Route tag 10

10.0.24.2, from 10.0.24.2, 00:02:09 ago, via FastEthernet0/1

Route metric is 435200, traffic share count is 1

Total delay is 7000 microseconds, minimum bandwidth is 10000 Kbit

Reliability 255/255, minimum MTU 1500 bytes

Loading 1/255, Hops 2

Route tag 10

r4#show ip route 10.0.100.1

Routing entry for 10.0.100.1/32

Known via "eigrp 1", distance 170, metric 435200

Tag 100, type external

Redistributing via eigrp 1

Last update from 10.0.24.2 on FastEthernet0/1, 00:02:41 ago

Routing Descriptor Blocks:

* 10.0.34.3, from 10.0.34.3, 00:02:41 ago, via FastEthernet0/0

Route metric is 435200, traffic share count is 1

Total delay is 7000 microseconds, minimum bandwidth is 10000 Kbit

Reliability 255/255, minimum MTU 1500 bytes

Loading 1/255, Hops 2

Route tag 100

10.0.24.2, from 10.0.24.2, 00:02:41 ago, via FastEthernet0/1

Route metric is 435200, traffic share count is 1

Total delay is 7000 microseconds, minimum bandwidth is 10000 Kbit

Reliability 255/255, minimum MTU 1500 bytes

Loading 1/255, Hops 2

Route tag 100

EIGRP

фильтрация

по

административной

дистанции

(Filtering with Administrative Distance)

В данном примере мы устанавливаем для адреса 10.1.1.1 максимальную административную дистанцию и делаем его не достижимым.

r4#show ip route eigrp

10.0.0.0/8 is variably subnetted, 8 subnets, 2 masks

D 10.0.12.0/24 [90/307200] via 10.0.24.2, 01:19:12, FastEthernet0/1

D 10.0.13.0/24 [90/307200] via 10.0.34.3, 01:19:12, FastEthernet0/0

D 10.2.2.2/32 [90/409600] via 10.0.24.2, 01:40:23, FastEthernet0/1

D 10.3.3.3/32 [90/409600] via 10.0.34.3, 01:19:12, FastEthernet0/0

D 10.1.1.1/32 [90/435200] via 10.0.34.3, 00:27:58, FastEthernet0/0

[90/435200] via 10.0.24.2, 00:27:58, FastEthernet0/1

r4(config)#access-list 2 permit 10.1.1.1

r4(config-router)#distance 255 0.0.0.0 255.255.255.255 2

Проверка осуществляется командами:

r4#show ip route eigrp

10.0.0.0/8 is variably subnetted, 7 subnets, 2 masks

D 10.0.12.0/24 [90/307200] via 10.0.24.2, 00:00:12, FastEthernet0/1

D 10.0.13.0/24 [90/307200] via 10.0.34.3, 00:00:12, FastEthernet0/0

D 10.2.2.2/32 [90/409600] via 10.0.24.2, 00:00:12, FastEthernet0/1

D 10.3.3.3/32 [90/409600] via 10.0.34.3, 00:00:12, FastEthernet0/0

r4#show ip route 10.1.1.1

% Subnet not in table

EIGRP

фильтрация

с

командой

пассивный

интерфейс

(Filtering with Passive-Interface)

Данный пример рассматривался ранее, данная команда полностью отключает EIGRP на интерфейсах.

r1(config)#router eigrp 1

r1(config-router)#passive-interface default

r1(config-router)#no passive-interface FastEthernet 0/0

r1(config-router)#no passive-interface Loopback 0

r1(config-router)#no auto-summary

r1(config-router)#end

r1#wr

EIGRP

фильтрация

с

офсет

листом

(Filtering with Offset-List)

В EIGRP при помощи офсет листа можно изменить метрику, данные действия показаны ниже:

r4#sh ip route 10.3.3.3

Routing entry for 10.3.3.3/32

Known via "eigrp 1", distance 90, metric 409600, type internal

Redistributing via eigrp 1

Last update from 10.0.34.3 on FastEthernet0/0, 00:00:41 ago

Routing Descriptor Blocks:

* 10.0.34.3, from 10.0.34.3, 00:00:41 ago, via FastEthernet0/0

Route metric is 409600, traffic share count is 1

Total delay is 6000 microseconds, minimum bandwidth is 10000 Kbit

Reliability 255/255, minimum MTU 1500 bytes

Loading 1/255, Hops 1

r3(config)#access-list 1 permit 10.3.3.3

r3(config)#router eigrp 1

r3(config-router)#offset-list 1 out 2147483647

r4#sh ip route 10.3.3.3

Routing entry for 10.3.3.3/32

Known via "eigrp 1", distance 90, metric 2147893247, type internal

Redistributing via eigrp 1

Last update from 10.0.34.3 on FastEthernet0/0, 00:00:05 ago

Routing Descriptor Blocks:

* 10.0.34.3, from 10.0.34.3, 00:00:05 ago, via FastEthernet0/0

Route metric is 2147893247, traffic share count is 1

Total delay is 83892079 microseconds, minimum bandwidth is 10000 Kbit

Reliability 255/255, minimum MTU 1500 bytes

Loading 1/255, Hops 1

EIGRP фильтрация с закрытой областью (Filtering with Stub Routing)

Если маршрутизатор указан как Stub, то соседи не посылают ему запросы о маршрутах.

r1(config)#route-map conn permit 10

r1(config-route-map)#match interface loopback10 loopback100

r1(config-route-map)#router eigrp 1

r1(config-router)#redistribute connected route-map conn

r1(config-router)#eigrp stub connected summary

Проверка осуществляется командами:

r4#show ip route eigrp | include EX

D EX 10.0.10.1/32 [170/435200] via 10.0.34.3, 00:39:29,FastEthernet0/0

D EX 10.0.100.1/32 [170/435200] via 10.0.34.3,00:39:29,FastEthernet0/0

r2#show ip eigrp neighbors detail

IP-EIGRP neighbors for process 1

H Address Interface Hold Uptime SRTT RTO Q Seq

(sec) (ms) Cnt Num

0 10.0.12.1 Fa0/0 14 00:44:27 97 582 0 146

Version 12.4/1.2, Retrans: 0, Retries: 0, Prefixes: 4