ccnp-基于源的route-map-nat

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1、今天去面试 考题中有一道为园区双ISP接入要求实现基于源的选路虽然没怎么搭过环境做过试验，不过也是大概知道用那些技术就随意答了答route-policy和SLA果然蒙对了回来才发现逍遥这个帖子先不管3721转过来然后立刻做了试验也加入了NAT效果很明显 基本TOPO和逍遥帖子TOPO一样有些基本变动加入3层交换更贴近园区设计。[也是我第一次用GNS以前都是自己写NET现在发现GNS真是很方便]TOPO：试验要求：1.host10 隶属于VLAN10  host20 隶属于VLAN20 SW1为3层交换机2.【202.106.1.0/24】都为外网地址 SW1既为3

2、层交换机也为边缘路由器 当VLAN10VLAN20内网用户访问外网时需做NAT转换3.要求VLAN10用户访问外网时走R2【ISP1】 VLAN20用户访问外网时走R1【ISP2】并且互为备份 配置：Host10:                                              Host20:noiprouting                                        noiproutingipdefault-network192.168.10.254                     ipdefault-n

3、etwork192.168.10.254interfaceEthernet0/0                                interfaceEthernet0/0ipaddress192.168.10.1255.255.255.0                 ipaddress192.168.10.1255.255.255.0noshutdown                                          noshutdown R1:                                          

4、        interfaceEthernet0/0                                 ipaddress202.106.1.10255.255.255.252             noshutdown                                         interfaceEthernet0/1                                ipaddress202.106.1.1255.255.255.252               noshutdown            

5、                               iproute202.106.1.4255.255.255.252202.106.1.2    R2: interfaceEthernet0/0 ipaddress202.106.1.6255.255.255.252noshutdown  interfaceEthernet0/1 ipaddress202.106.1.2255.255.255.252noshutdowniproute202.106.1.8255.255.255.252202.106.1.1  SW1:hostnameSW1ipcefno

6、ipdomainlookupipslamonitor1 [分别设置两个SLA监控对象，分别监视2个ISP的对段地址，用于TRACK] typeechoprotocolipIcmpEcho202.106.1.6source-interfaceEthernet1/2 frequency5 每秒包数ipslamonitorschedule1lifeforeverstart-timenow 监控计划时间为永远从现在起ipslamonitor2 typeechoprotocolipIcmpEcho202.106.1.10source-interfaceEthernet1/1

7、 frequency5ipslamonitorschedule2lifeforeverstart-timenow!  track1rtr1reachability  设置跟踪1监控可达性track2rtr2reachability  设置跟踪2监控可达性!interfaceFastEthernet0/1 switchportaccessvlan10!interfaceFastEthernet0/2 switchportaccessvlan20!interfaceEthernet1/1 ipaddress202.106.1.9255.255.255.252 ipna

8、touts