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AR18寬帶路由器VRRP應(yīng)用

【AR18寬帶路由器VRRP應(yīng)用】組網(wǎng)和配置步驟
1.1VRRP的典型應(yīng)用
2.8.1應(yīng)用說明
為提高用戶網(wǎng)絡(luò)的可用性和可靠性,可以考慮為用戶部署兩臺(tái)SOHO路由器,并且采用VRP平臺(tái)的VRRP特性來保障網(wǎng)絡(luò)的健壯性 。根據(jù)客戶具體的實(shí)際情況,可以有不同的SOHO路由器組合來實(shí)現(xiàn)組網(wǎng) 。通過VRRP的部署可以實(shí)現(xiàn),當(dāng)某個(gè)ISP的線路出現(xiàn)故障,可以實(shí)現(xiàn)用戶數(shù)據(jù)從另一條線路路由出去;甚至于當(dāng)某臺(tái)SOHO路由器因不可抗因素出現(xiàn)故障的情況下,整個(gè)網(wǎng)絡(luò)可以不間斷地與外部網(wǎng)絡(luò)進(jìn)行通信 。
整個(gè)網(wǎng)絡(luò)規(guī)劃:局域網(wǎng)PC通過DHCP獲得地址,AR 18-32和3Com 3031配置VRRP和DHCP Server,網(wǎng)段地址10.11.x.x/16,網(wǎng)關(guān)為VRRP虛擬路由器10.11.0.3 。AR 18-32以太網(wǎng)地址10.11.0.1、3Com 3031以太網(wǎng)地址10.11.0.2 。
VRRP:優(yōu)先選路3Com 3031,配置其優(yōu)先級(jí)為120;AR 18-32配置優(yōu)先級(jí)為100;當(dāng)ADSL線路故障的時(shí)候,優(yōu)先級(jí)減50,這樣當(dāng)3Com 3031的ADSL線路故障的時(shí)候,其優(yōu)先級(jí)為120-70=50,小于AR 18-32的優(yōu)先級(jí)100,AR 18-32能夠成為Master進(jìn)行報(bào)文路由 。
2.8.2組網(wǎng)圖

1.1.3注視事項(xiàng)
配置路由器接入INTERNET

配置VRRP …… AR 18-32
#配置以太網(wǎng)接口
[1832]interface Ethernet 1/0
[1832-Ethernet1/0]ip address 10.11.0.1 16
#配置VRRP服務(wù)
[1832-Ethernet1/0]vrrp vrid 10 virtual-ip 10.11.0.3
[1832-Ethernet1/0]vrrp vrid 10 priority 100
#VRRP監(jiān)控ADSL線路
[1832-Ethernet1/0]vrrp vrid 10 track atm 2/0 redUCed 50
#配置DHCP服務(wù)
[1832]dhcp server ip-pool vrrp
[1832-dhcp-pool-vrrp]network 10.11.0.0 mask 255.255.0.0
[1832-dhcp-pool-vrrp]gateway-list 10.11.0.3
[1832-dhcp-pool-vrrp]dns-list 10.72.66.36 10.72.66.37
[1832-dhcp-pool-vrrp]domain-name huawei-3com.com
[1832-dhcp-pool-vrrp]nbns-list 10.153.0.11
#配置NAT服務(wù)
[1832]acl number 3000
[1832-acl-adv-3000]rule 0 permit ip source 10.11.0.0 0.0.255.255
[1832]interface Dialer 0
[1832-Dialer0]nat outbound 3000
配置VRRP …… 3Com 3031
#配置以太網(wǎng)接口
[3031]interface Ethernet 1/0
[3031-Ethernet1/0]ip address 10.11.0.2 16
#配置VRRP服務(wù)
[3031-Ethernet1/0]vrrp vrid 10 virtual-ip 10.11.0.3
[3031-Ethernet1/0]vrrp vrid 10 priority 120
#VRRP監(jiān)控ADSL線路
[3031-Ethernet1/0]vrrp vrid 10 track atm 2/0 reduced 50
#配置DHCP服務(wù)
[3031]dhcp server ip-pool vrrp
[3031-dhcp-pool-vrrp]network 10.11.0.0 mask 255.255.0.0
[3031-dhcp-pool-vrrp]gateway-list 10.11.0.3
[3031-dhcp-pool-vrrp]dns-list 10.72.66.36 10.72.66.37
[3031-dhcp-pool-vrrp]domain-name huawei-3com.com
[3031-dhcp-pool-vrrp]nbns-list 10.153.0.11
#配置NAT服務(wù)
[3031]acl number 3000
[3031-acl-adv-3000]rule 0 permit ip source 10.11.0.0 0.0.255.255
[3031]interface Dialer 0
[3031-Dialer0]nat outbound 3000
配置后驗(yàn)證VRRP狀態(tài)是否正常
<3031>dis vrrp
Virtual Ip Ping : Disable
Ethernet1/0Virtual Router 10
 state : Master
Virtual IP : 10.11.0.3
Config Priority : 120
Run Priority : 120
Preempt : YESDelay Time : 0
 Timer : 1
 Auth Type : NONE
Track IF : Atm2/0Priority reduced : 50

<1832>dis vrrp
Virtual Ip Ping : Disable
Ethernet1/0Virtual Router 10
 state : Backup
Virtual IP : 10.11.0.3
Config Priority : 100
Run Priority : 100
Preempt : YESDelay Time : 0
 Timer : 1
 Auth Type : NONE
Track IF : Atm2/0Priority reduced : 50
ADSL線路故障后VRRP的狀態(tài)
<3031>dis vrrp
Virtual Ip Ping : Disable
Ethernet1/0Virtual Router 10
 state : Backup
Virtual IP : 10.11.0.3
Config Priority : 120
Run Priority : 70

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