在低端路由器上实现双机热备份和EIGRP的路由调整


这是实际的一个案例:
1. HSRP的配置:
在LongQuan-Backup(1601)上:
int e0
ip address 22.97.80.253 255.255.255.0 secondary
ip address 21.97.80.253 255.255.255.0
no ip redirects
no logging event subif-link-status
standby priority 200
standby preempt
standby ip 21.97.80.1
standby ip 22.97.80.1 secondary
standby track Serial0 100/假如S0口的线路当掉了,该E口的优先权减小100,从而成为STANDBY状态
在LongQuan(2501)上:
int e0
ip address 22.97.80.254 255.255.255.0 secondary
ip address 21.97.80.254 255.255.255.0
no ip redirects
no ip directed-broadcast
standby priority 150
standby preempt
standby ip 21.97.80.1
standby ip 22.97.80.1 secondary
2.LongQuan(2500)上路由的调整:
interface Serial1.16 point-to-point
description --- 256K LianTong FR ---
ip address 22.96.229.2 255.255.255.252
ip accounting output-packets
bandwidth 1000000/调高接口带宽
frame-relay interface-dlci 16
router eigrp 1
redistribute connected
redistribute sta
network 21.0.0.0
network 22.0.0.0
distribute-list 22 out Ethernet0/过滤掉21的低METRIC值EIGRP路由
no auto-summary
!
Access-list 22 permit 22.0.0.0 0.255.255.255
说明:平时正常时候,1601是局域网内两个网段的ACTIVE网关,局域网中目的地址为22网段的数据走联通线路,21网段的走电信线路;当1601的S口DOWN后,25成为主网关,一切数据都走联通线路
FW: 我认为可以建立2 个 hsrp组,让source 21 走1600 ,让source 22 走25,
在LongQuan-Backup(1601)上:
int e0
ip address 22.97.80.253 255.255.255.0 secondary
ip address 21.97.80.253 255.255.255.0
no ip redirects
no logging event subif-link-status
standby1 ip 21.97.80.1
standby 1 priority 110
standby1 preempt
standby 2 ip 22.97.80.1
standby 2 priority 109
standby 2 preempt
standby 11track Serial0
standby 2 1track Serial0
假如S0口的线路当掉了,该E口的优先权减小,从而成为STANDBY状态
在LongQuan(2501)上:
int e0
ip address 22.97.80.254 255.255.255.0 secondary
ip address 21.97.80.254 255.255.255.0
no ip redirects
no ip directed-broadcast
standby priority 150
standby 1 ip 21.97.80.1
standby 1 priority 109
standby1 preempt
standby 2 ip 22.97.80.1
standby 2 priority 110
standby 2 preempt
standby 11track Serial0
standby 21track Serial0
我认为不必再2500 上作路由matric 和 distribute-list 调整,以为对pc 来说,认为只有一台router, 数据包往那个router 发,有hsrp protocol 控制。
FW:希望进一步讨论有什么其他方法达到设计要求 。
我的想法:
假如用3550 代替hub ,现在3550上实现3层交换,
1600 和 2500 分别接 fa 0/1 fa 0/2
3550 配置如下 :
interface FastEthernet0/1
description link 1600
interface FastEthernet0/2
description link 2500
int vlan 1
ip address 22.97.80.100 255.255.255.0 //3550 ip 地址
int vlan 21
ip address 21.97.80.100 // oa 网段网关
在3550 上实现policy-router 让yewu 和 oa 数据分别走路径,并实现2条路经;互为备份?
不知道想法可不可行?

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