NAT之Easy IP
允許多個私網地址轉換成一個公網IP,很常用
CAL用來做匹配範圍時,沒有默認隱含允許所有的規則
PC1(IP地址)
IP地址:192.168.31.1
子網掩碼:255.255.255.0
網關:192.168.31.254
PC2(IP地址)
IP地址:192.168.31.2
子網掩碼:255.255.255.0
網關:192.168.31.254
Server1(IP地址)
IP地址:192.168.31.3
子網掩碼:255.255.255.0
網關:192.168.31.254
Client1(IP地址)
IP地址:9.9.9.9
子網掩碼:255.255.255.0
網關:9.9.9.1
R1(設置IP地址)
<Huawei>system-view //進入全局配置模式
[Huawei]undo info-center enable //關閉信息告警提示
[Huawei]sysname R1 //改名
[R1]interface g0/0/0 //進入接口
[R1-GigabitEthernet0/0/0]ip address 192.168.31.254 24 //設置IP地址
[R1-GigabitEthernet0/0/0]quit //退出
[R1]interface g0/0/1 //進入接口
[R1-GigabitEthernet0/0/1]ip address 12.1.1.1 29 //設置IP地址
[R1-GigabitEthernet0/0/1]quit //退出
[R1]
R2(設置IP地址)
<Huawei>system-view //進入全局配置模式
[Huawei]undo info-center enable //關閉信息告警提示
[Huawei]sysname R2 //改名
[R2]interface g0/0/0 //進入接口
[R2-GigabitEthernet0/0/0]ip address 12.1.1.2 29 //設置IP地址
[R2-GigabitEthernet0/0/0]quit //退出
[R2]interface g0/0/1 //進入接口
[R2-GigabitEthernet0/0/1]ip address 9.9.9.1 24 //設置IP地址
[R2-GigabitEthernet0/0/1]quit //退出
[R2]
R1(默認路由)
[R1]ip route-static 0.0.0.0 0 12.1.1.2 //設置默認路由
[R1]
R1(ACL用來做匹配範圍時,沒有默認隱含允許所有的規則)
[R1]acl number 2000 //創建ACL2000
[R1-acl-basic-2000]rule permit source 192.168.31.0 0.0.0.255 //設置ACL匹配範圍
[R1-acl-basic-2000]quit //退出
[R1]
R1(內網的私網地址出包時轉換成公網接口G0/0/0的IP地址)
[R1]interface g0/0/1 //進入接口
[R1-GigabitEthernet0/0/1]nat outbound 2000 //當ACL2000應用於出接口轉換爲公網IP
[R1-GigabitEthernet0/0/1]quit //退出
[R1]
PC1(測試是否可以ping通Client1)
PC>ping 9.9.9.9 //測試是否可以ping通Client1
Ping 9.9.9.9: 32 data bytes, Press Ctrl_C to break
Request timeout!
Request timeout!
From 9.9.9.9: bytes=32 seq=3 ttl=253 time=31 ms //ping通
From 9.9.9.9: bytes=32 seq=4 ttl=253 time=31 ms
From 9.9.9.9: bytes=32 seq=5 ttl=253 time=32 ms
--- 9.9.9.9 ping statistics ---
5 packet(s) transmitted
3 packet(s) received
40.00% packet loss
round-trip min/avg/max = 0/31/32 ms
PC>
PC2(測試是否可以ping通Client1)
PC>ping 9.9.9.9 //測試是否可以ping通Client1
Ping 9.9.9.9: 32 data bytes, Press Ctrl_C to break
From 9.9.9.9: bytes=32 seq=1 ttl=253 time=47 ms //ping通
From 9.9.9.9: bytes=32 seq=2 ttl=253 time=32 ms
From 9.9.9.9: bytes=32 seq=3 ttl=253 time=47 ms
From 9.9.9.9: bytes=32 seq=4 ttl=253 time=78 ms
From 9.9.9.9: bytes=32 seq=5 ttl=253 time=15 ms
--- 9.9.9.9 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 15/43/78 ms
PC>