tcp/ip_eigrp-3案例研究

1.eigrp的认证:md5

2.eigrp默认路由:r4 ip route 0.0.0.0/0重分布静态

3.eigrp stub:默认只会把直连和汇总路由更新给r5 redis把自身引入的外部路由公告出来.static把重分布的静态路由公告出去,receive-only只接收而不公告任何路由给邻居.

4.leak-map,一个补丁,对r5泄露路由.

5.eigrp router-id,对外部路由有效果

6.不要把holdtime设置的小于hello interval

7.sia研究

r1:

router eigrp 90

no auto

network 12.1.1.1 0.0.0.0

network 15.1.1.1 0.0.0.0

network 10.1.4.1 0.0.0.0

network 13.1.1.1 0.0.0.0

key chain ender

key 1

key-string cisco

show key chain

int s0/0

ip auauthentication mode eigrp 90 md5

ip authentication key chain eigrp 90 ender

r2:

router eigrp 90

no auto

network 0.0.0.0

r3:

router eigrp 90

no auto

network 0.0.0.0

r4:

router eigrp 90

no auto

network 0.0.0.0

r5:

router eigrp 90

no auto

network 0.0.0.0

r2:

show ip eigrp inter

debug ip eigrp 90

int s0/0

ip authentication mode eigrp 90 md5

ip authentication key-chain eigrp 90 yeslab

key chain yeslab

key 1

key-string cisco

r4:

ip route 0.0.0.0 0.0.0.0 44.1.1.2

router eigrp 90

redistirbute static(重分布静态不需要设置metric)

r1:

int e1/0

ip summary-address eigrp 90 0.0.0.0 0.0.0.0(通过汇总注入默认路由)

router eigrp 90

no auto

eigrp stub(默认只发直连和汇总路由)

int e1/0

ip summary-address eigrp 10.11.4.0 255.255.252.0

一台具有eigrp末梢邻居的路由器将不会向它的末梢发送查询,因此就排除了配置末梢的远端站点引起卡在活动状态的情形发生的激活,也降低了网络中其余部分路由选择的不稳定.

r4:

int lo1

ip add 4.4.4.4 255.255.255.0

router eigrp 90

no network 0.0.0.0

network 24.1.1.0

network 34.1.1.0

network 44.1.1.0

redistribute connected

r1:

router eigrp 90

eigrp stub redistributed

int lo10

ip add 1.1.1.1 255.255.255.0

router eigrp 90

redistribute connected

int e1/0

ip summary-address eigrp 90 4.4.0.0 255.255.255.0

router eigrp 90

eigrp stub static(只是重分布进来的静态发送)

redistribute static

ip route 4.4.4.0 255.255.255.0 13.1.1.3

任何一条路由只有eigrp topoloy表中有才能引入到stub区域.

router eigrp 90

eigrp stub receive-only(只收不发任何路由)