H3C MSR3020路由NQA实例配置

组网需求：

       公司接入3条宽带，其中两台为拨号ADSL，一条固定IP专线，实现上网业务，不同部门电脑划分不同VLAN，通过策略路由实现不同部门走不同线路访问外部网络，同时3条接入宽带实现联动，当其中一条出现故障时自动切换到另一条线路，当链接恢复正常后自动切换回来。

组网图如下：

<a href="https://s4.51cto.com/wyfs02/M00/8D/7E/wKioL1iew32RTQDkAACecuItEys683.jpg-wh_500x0-wm_3-wmp_4-s_4203209773.jpg" target="_blank"></a>

MSR路由主要配置：

#

 version 7.1.059, Release 0306P81

 sysname CORE-RT01

 telnet server enable

 qos carl 1 source-ip-address range 192.168.61.1 to 192.168.61.253 per-address  #QOS限流

 qos carl 2 source-ip-address range 192.168.11.1 to 192.168.11.253 per-address #同上，但实际效果不理想，建议上专业流控设备

 port-security enable

 dialer-group 1 rule ip permit

 dialer-group 2 rule ip permit

 dhcp enable

 dns proxy enable

 password-recovery enable

vlan 1

policy-based-route wan permit node 1   #策略路由配置

 if-match acl 3000   #避免内网网段互访的数据，直接匹配了策略路由出去了，影响正常通信

policy-based-route wan permit node 2

 if-match acl 2000

 apply default-next-hop 14.XXX.XXX.888 track 1

policy-based-route wan permit node 3

 if-match acl 2001

 apply output-interface Dialer1

policy-based-route wan permit node 4

 if-match acl 2002

 apply output-interface Dialer2

policy-based-route wan permit node 5    #策略路由最后要加一条空节点允许其他数据流通过

nqa entry wan1 1        #NQA配置

 type icmp-echo

  destination ip 14.XXX.XXX.888   #网关地址

  frequency 10000

  next-hop ip 14.XXX.XXX.888    #网关地址

  probe count 5

  probe timeout 1000

  reaction 1 checked-element probe-fail threshold-type consecutive 6 action-type trigger-only

 nqa schedule wan1 1 start-time now lifetime forever  #使能测试组的启动时间和持续时间并设置为永久

controller Cellular0/0

controller Cellular0/1

interface Aux0

interface Dialer1      #ADSL线路1       

 description INT ADSL 100M 

 mtu 1492

 ppp chap password cipher $c$3$vKmoKSbbB8XKfxtafJ785ifLNBk/Oo1YHmud 

 ppp chap user [email protected] 

 ppp ipcp dns admit-any 

 ppp ipcp dns request 

 ppp pap local-user [email protected] password cipher $c$3$beaDKJmpTvuChge0eU8J1Bj0T+JpG8aUUMlZ 

 dialer bundle enable

 dialer-group 1

 ip address ppp-negotiate

 tcp mss 1024

 nat outbound 2003

interface Dialer2    #ADSL线路2

 description CAIWU ADSL 100M

 ppp chap password cipher $c$3$4qsrevZ+kIoKDuF3zwCvpmucdqAEDN5S43CL 

 ppp pap local-user [email protected] password cipher $c$3$c2+0dxIWmqO7FqnD72dYCvGXSrXh0+b/R4/I 

 dialer-group 2

 dialer timer idle 0     #需注意多条ADSL线路拨号时需添加此参数，MSR 7.0版本与5.0命令有区别

interface NULL0

interface GigabitEthernet0/0   #连接SW

 port link-mode route

 description LAN link to HW-CORE-SW

 combo enable copper

 ip address 192.168.201.1 255.255.255.0

 packet-filter 2017 inbound

 qos car inbound carl 1 cir 500 cbs 31250 ebs 0 green pass red discard yellow pass

 qos car inbound carl 2 cir 500 cbs 31250 ebs 0 green pass red discard yellow pass

 nat hairpin enable   #内网客户端通过公网地址访问内部服务器

 ip policy-based-route wan  #将策略路由应用在内网接口 

interface GigabitEthernet0/1

interface GigabitEthernet0/2

 description WAN 10M DSL

 ip address 14.xxx.xxx.xxx 255.255.255.252

 nat server protocol tcp global current-interface 21 inside 192.168.10.14 21  #相关端口映射应用

 nat server protocol tcp global current-interface 25 inside 192.168.10.168 25

 nat server protocol tcp global current-interface 80 inside 192.168.10.14 80

 nat server protocol tcp global current-interface 110 inside 192.168.10.168 110

 nat server protocol tcp global current-interface 143 inside 192.168.10.168 143

 nat server protocol tcp global current-interface 5580 inside 192.168.10.14 8088

 nat server protocol tcp global current-interface 5581 inside 192.168.10.14 8081

interface GigabitEthernet6/0

 description WAN INT ADSL 100M

 pppoe-client dial-bundle-number 1

interface GigabitEthernet6/1

 description WAN CAIWU ADSL 100M

 pppoe-client dial-bundle-number 2

interface GigabitEthernet6/7

interface GigabitEthernet6/2

 port link-mode bridge

interface GigabitEthernet6/3

#              

interface GigabitEthernet6/4

interface GigabitEthernet6/5

interface GigabitEthernet6/6

 scheduler logfile size 16

line class aux

 user-role network-admin

line class tty

 user-role network-operator

line class vty

line aux 0

line vty 0 15

 authentication-mode scheme

line vty 16 63

 ip route-static 0.0.0.0 0 14.XXX.XXX.888 track 1  #默认路由指向下一跳网关

 ip route-static 0.0.0.0 0 Dialer1 preference 100

 ip route-static 0.0.0.0 0 Dialer2 preference 120

 ip route-static 192.168.10.0 24 192.168.201.254

 ip route-static 192.168.11.0 24 192.168.201.254

 ip route-static 192.168.16.0 24 192.168.201.254

 ip route-static 192.168.18.0 24 192.168.201.254

 ip route-static 192.168.61.0 24 192.168.201.254

acl basic 2000

 rule 0 permit source 192.168.10.0 0.0.0.255

 rule 1 permit source 192.168.11.0 0.0.0.255

 rule 2 permit source 192.168.18.0 0.0.0.255

acl basic 2001 

 rule 0 permit source 192.168.61.0 0.0.0.255

acl basic 2002

 rule 0 permit source 192.168.16.0 0.0.0.255

acl basic 2003

 rule 0 permit

acl basic 2017                             #禁止部分IP访问外网

 description Deny ip link to Internet

 rule 0 deny source 192.168.10.23 0

 rule 1 deny source 192.168.10.5 0

 rule 2 deny source 192.168.10.7 0

 rule 199 permit

acl advanced 3000

 rule 0 permit ip source 192.168.0.0 0.0.255.255 destination 192.168.0.0 0.0.255.255  #增加一条ACL避免内网网段互访的数据，直接匹配了策略路由出去了，影响正常通信

domain system

 domain default enable system

user-group system

local-user admin class manage

 password hash $h$6$ROvXv3DjylL9HE6p$53Ib+gCLOkKDY58w+mO03hy0xqy8rQS5xAsuX1HyJFGpPF0EYjxg/8CPhmUWIs4NrNWKM78PWr6QckQj98RdjQ==

 service-type telnet http https

 authorization-attribute user-role network-admin

 ip http enable

 ip https enable

 track 1 nqa entry wan1 1 reaction 1   #NQA关联 track 1 和 reaction 1

return

说明：以上加色字体为配置要点，由于考虑到成本问题，部分公司会选择ADSL接入作为备份链路，如果是多条固定IP宽带接入则设置多个NQA 实现即可，配置类似， 以上为工作小记。

本文转自pimg200551CTO博客，原文链接：http://blog.51cto.com/pimg2005/1896917 ，如需转载请自行联系原作者