CCNA 640-802 v16 or 3.17詳解
CCNA 640-802 v16 or 3.17詳解：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
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題目中要求我們做NAT 的轉(zhuǎn)換，已經(jīng)告訴inside global 是6個(gè)IP 地址，但是這個(gè)公司卻有14臺(tái)主機(jī)，那么肯定要使用overload參數(shù)；
題目還告訴我們登陸的密碼cisco ，和主機(jī)的IP 范圍192.168.16.33-192.168.16.46 ，為了進(jìn)行NAT轉(zhuǎn)換需要把這14個(gè)IP進(jìn)行匯總，并且用一個(gè)ACL來表示192.168.16.32 0.0.0.15；
其中的6個(gè)內(nèi)部全局地址放進(jìn)NAT的地址池，ip nat pool **** 198.18.237.255 ………………
雖然題目說接口的 inside 和outside 已經(jīng)配置了，但是還是要看當(dāng)時(shí)的情況，用show來確定一下，如果沒有那么就加上去
一定要記得保存！
CCNA640-802 v16 or 3.17詳解：NAT的步驟
1.配置接口inside 還是outside
2.確定要把內(nèi)部地址轉(zhuǎn)換為哪些地址出去（地址池）
3.把內(nèi)部的地址用ACL匹配出來
4.執(zhí)行轉(zhuǎn)換
這就是對(duì)CCNA 640-802 v16 or 3.17的詳解。
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