H3C双线出口配置

H3C 双互联网接入负载分担及备份【解决方案及配置实例】

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version 5.20, Alpha 1011

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sysname H3C

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bfd echo-source-ip 1.1.1.1

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acl number 3000

rule 0 permit ip source 192.168.1.0 0.0.0.255

acl number 3001

rule 0 permit ip source 192.168.2.0 0.0.0.255

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interface Ethernet0/1/0

port link-mode route

ip address 192.168.100.254 255.255.255.0

ip policy-based-route internet

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interface Ethernet0/1/1

port link-mode route

ip address 10.10.10.1 255.255.255.0

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interface Ethernet0/1/2

port link-mode route

ip address 10.10.20.1 255.255.255.0

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policy-based-route internet permit node 1

if-match acl 3000

apply ip-address next-hop 10.10.10.254 track 1

policy-based-route internet permit node 2

if-match acl 3001

apply ip-address next-hop 10.10.20.254 track 2

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ip route-static 0.0.0.0 0.0.0.0 10.10.10.254 track 1

ip route-static 0.0.0.0 0.0.0.0 10.10.20.254 track 2

ip route-static 192.168.0.0 255.255.0.0 192.168.100.1

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track 1 bfd echo interface Ethernet0/1/1 remote ip 10.10.10.254 loca l ip 10.10.10.1

track 2 bfd echo interface Ethernet0/1/2 remote ip 10.10.20.254 loca l ip 10.10.20.1

配置案例

1.10 双WAN接入路由配置

目前越来越多的企业和网吧采用双WAN上行接入的方式，这种组网方式既可以实现链路的负载分担又可以实现链路的动态备份，受到用户的普遍欢迎。下面分别介绍不同双WAN接入方式下路由的优化配置方法。

1.10.1 同运营商双WAN接入

1. 双以太网链路接入

1) MSR配置方法

对于MSR网关，可以使用策略路由和自动侦测实现负载分担和链路备份功能。同样以其中一条WAN连接地址为142.1.1.2/24，网关为142.1.1.1，另外一条WAN连接地址为162.1.1.2/24，网关为162.1.1.1，使用MSR2010做为网关设备为例，配置方法如下：：

1、配置自动侦测组，对WAN连接状态进行侦测：

[H3C]nqa agent enable

[H3C]nqa entry wan1 1

[H3C-nqa-wan1-1]type icmp-echo

[H3C-nqa-wan1-1-icmp-echo]destination ip 142.1.1.1

[H3C-nqa-wan1-1-icmp-echo]next-hop 142.1.1.1

[H3C-nqa-wan1-1-icmp-echo]probe count 3

[H3C-nqa-wan1-1-icmp-echo]probe timeout 1000

[H3C-nqa-wan1-1-icmp-echo]frequency 10000

[H3C-nqa-wan1-1-icmp-echo]reaction 1 checked-element probe-fail threshold-type con secutive 6 action-type trigger-only

[H3C]nqa entry wan2 1

[H3C-nqa-wan2-1]type icmp-echo

[H3C-nqa-wan2-1-icmp-echo]destination ip 162.1.1.1

[H3C-nqa-wan2-1-icmp-echo]next-hop 162.1.1.1

[H3C-nqa-wan2-1-icmp-echo]frequency 10000

[H3C-nqa-wan2-1-icmp-echo]probe count 3

[H3C-nqa-wan2-1-icmp-echo]probe timeout 1000

[H3C-nqa-wan2-1-icmp-echo]reaction 1 checked-element probe-fail threshold-type con secutive 6 action-type trigger-only

[H3C-nqa-wan2-1-icmp-echo]quit

[H3C]nqa schedule wan1 1 start-time now lifetime forever

[H3C]nqa schedule wan2 1 start-time now lifetime forever

[H3C]track 1 nqa entry wan1 1 reaction 1

[H3C]track 2 nqa entry wan2 1 reaction 1

2、配置ACL，对业务流量进行划分，以根据内网主机单双号进行划分为例：

[H3C]acl number 3200

[H3C-acl-adv-3200] rule 0 permit ip source 192.168.1.0 0.0.0.254

[H3C-acl-adv-3200]rule 1000 deny ip

[H3C-acl-adv-3200]quit

[H3C]acl number 3201