CCNA 640-802 v16 or 3.17详解：LAB

A network associate is configuring arouter for the Bomar company to provide Internet access. The ISP has provided the company with six public IP address of 198.18.237.225 198.18.237.230. The company has 14 hosts that need to access the Internet simultaneously. The hosts in the company LAN have been assigned private space addresses in the range of 192.168.16.33 - 192.168.16.46.

The following have already been configured on the router.

- The basic router configuration

- The appropriate interfaces have been configured for NAT inside and NAT outside.

- The appropriate static routes have also been configured (since the company will be a stub network, no routing protocol will be required)

- All passwords have been temporarily set to "cisco".

The task is to complete the NAT configuration using all IP address assigned by the ISP to provide INternet access for the hosts in the BOmar LAN. You have successfully completed this exercise when the host PC can ping the ISP.

Configuration information

router name - Bomar

inside global addresses - 198.18.237.225 198.18.237.230/29

inside local addresses - 192.168.16.33 - 192.168.16.46/28

number of inside hosts - 14

题目中要求我们做NAT 的转换，已经告诉inside global 是6个IP 地址，但是这个公司却有14台主机，那么肯定要使用overload参数；

题目还告诉我们登陆的密码cisco ，和主机的IP 范围192.168.16.33-192.168.16.46 ，为了进行NAT转换需要把这14个IP进行汇总，并且用一个ACL来表示192.168.16.32 0.0.0.15；

其中的6个内部全局地址放进NAT的地址池，ip nat pool **** 198.18.237.255 ………………

虽然题目说接口的 inside 和outside 已经配置了，但是还是要看当时的情况，用show来确定一下，如果没有那么就加上去

一定要记得保存！

CCNA640-802 v16 or 3.17详解：NAT的步骤

1.配置接口inside 还是outside

2.确定要把内部地址转换为哪些地址出去（地址池）

3.把内部的地址用ACL匹配出来

4.执行转换

这就是对CCNA 640-802 v16 or 3.17的详解。

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