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Published bySolomon Tucker Modified over 9 years ago
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静态 NAT 地址转换 实现静态 NAT 地址转换功能。将路由器 2501 的 E0 作为内 部端口,同步端口 S0 作为外部端口。其中 10.1.1.2 , 10.1.1.3 , 10.1.1.4 的内部本地地址采用静态地址转换。其内部合法地址 分别对应为 192.1.1.2 , 192.1.1.3 , 192.1.1.4 。
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Router>enable Router#config terminal Router(config)#hostname RouterA RouterA (config)#interface fastEthernet 0/0 RouterA (config-if)#ip address 10.1.1.253 255.255.255.0 RouterA (config-if)#no shutdown RouterA (config-if)#exit RouterA(config)#interface serial 2/0 RouterA(config-if)#ip address 192.1.1.1 255.255.255.0 RouterA(config-if)#exit
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RouterA(config)#ip nat inside source static 10.1.1.2 192.1.1.2 // 配 置静态地址映射关系 RouterA(config)#ip nat inside source static 10.1.1.3 192.1.1.3 RouterA(config)#ip nat inside source static 10.1.1.4 192.1.1.4 RouterA(config)#ip nat inside source static 10.1.1.1 192.1.1.1 RouterA(config)#interface fastEthernet 0/0 RouterA(config-if)#ip nat inside // 配置端口 E0 为内部接口 RouterA(config-if)#no shutdown RouterA(config-if)#exit RouterA(config)#interface serial 2/0 RouterA(config-if)#ip nat outside // 配置端口 S0 为外部接口 RouterA(config-if)#no shutdown
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RouterA(config-if)#clock rate 64000 RouterA(config-if)#no shutdown RouterA(config-if)#end RouterA#ping 10.1.1.2 RouterA#show ip nat statistics Total translations: 4 (4 static, 0 dynamic, 0 extended) Outside Interfaces: Serial2/0 Inside Interfaces: FastEthernet0/0 RouterA#show ip nat translations Pro Inside global Inside local Outside local Outside global --- 192.1.1.1 10.1.1.1 --- --- --- 192.1.1.2 10.1.1.2 --- --- --- 192.1.1.3 10.1.1.3 --- --- --- 192.1.1.4 10.1.1.4 --- --- RouterA#
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Switch>enable Switch#config terminal Switch(config)#interface vlan 1 Switch(config-if)#ip address 10.1.1.254 255.255.255.0 Switch(config-if)#no shutdown
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配置 PC1-PC3 PC1 IP Address............ : 10.1.1.4 Subnet Mask........... : 255.255.255.0 Default Gateway......... : 10.1.1.1 PC2 IP Address............ : 10.1.1.2 Subnet Mask........... : 255.255.255.0 Default Gateway......... : 10.1.1.1 PC3 IP Address............ : 10.1.1.3 Subnet Mask........... : 255.255.255.0 Default Gateway......... : 10.1.1.1 配置完成后可以用以下语句进行查看: RouterA#show ip nat translations RouterA#show ip nat statistics
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PAT (端口地址转换)配置 本实例实现 PAT 地址转换功能。将路由器 2514 的 E0 作为内 部端口,同步端口 E1 作为外部端口。其中 192.168.1.0 为 内部本地地址网段。其内部有一个全局地址 202.98.38.1 , 这个地址配置在路由器 E1 口。 交换机 SwitchA1912 一台,接两台 PC ( PC1 : 192.168.1.2/24 , Default Gateway 192.168.1.1 ; PC2 : 202.98.38.5/24 Default Gateway 202.98.38.1 ),一台 2514 路由器( RouerA: E0 : 192.168.1.1/24 ; E1 : 202.98.38.1/24 )。
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配置路由器 Router>enable Router#config terminal Router(config)#hostname RouterA RouterA(config)#interface fastEthernet 0/0 RouterA(config-if)#ip address 192.168.1.1 255.255.255.0 RouterA(config-if)#ip nat inside RouterA(config-if)#no shutdown RouterA(config-if)#exit RouterA(config)#interface fastEthernet 1/0 RouterA(config-if)#ip address 202.98.38.5 255.255.255.0 RouterA(config-if)#ip nat outside RouterA(config-if)#no shutdown RouterA(config-if)#exit
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RouterA(config)#ip nat pool aa 202.98.38.2 202.98.38.10 netmask 255.255.255.0 RouterA(config)#access-list 1 permit 192.168.1.0 0.0.0.255 RouterA(config)#ip nat inside source list 1 pool aa RouterA#show ip access-lists
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Switch>enable Switch#config terminal Switch(config)#interface vlan 1 Switch(config-if)#ip address 192.168.1.1 255.255.255.0
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配置 PC1 与 PC2 PC1 IP Address............ : 192.168.1.2 Subnet Mask........... : 255.255.255.0 Default Gateway......... : 192.168.1.1 C> ipconfig /ip 192.168.1.2 255.255.255.0 C>ipconfig /dg 192.168.1.1 PC2 IP Address............ : 202.98.38.5 Subnet Mask........... : 255.255.255.0 Default Gateway......... : 202.98.38.1 C> ipconfig /ip 202.98.8.5 255.255.255.0 C>ipconfig /dg 202.98.38.1
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PC1 : C:>ping 202.98.38.1 C:>ping 202.98.38.5 PC2 : C:>ping 202.98.38.1 配置完成后可以用以下语句进行查看: RouterA#show ip nat translations
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PC>ping 202.98.38.1 Pinging 202.98.38.1 with 32 bytes of data: Reply from 202.98.38.1: bytes=32 time=63ms TTL=255 Reply from 202.98.38.1: bytes=32 time=62ms TTL=255 Reply from 202.98.38.1: bytes=32 time=63ms TTL=255 Ping statistics for 202.98.38.1: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 62ms, Maximum = 63ms, Average = 62ms PC>ping 202.98.38.5 Pinging 202.98.38.5 with 32 bytes of data: Reply from 202.98.38.5: bytes=32 time=93ms TTL=127 Reply from 202.98.38.5: bytes=32 time=94ms TTL=127 Reply from 202.98.38.5: bytes=32 time=93ms TTL=127 Reply from 202.98.38.5: bytes=32 time=94ms TTL=127 Ping statistics for 202.98.38.5: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 93ms, Maximum = 94ms, Average = 93ms C>
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RouterA#show ip nat translations Pro Inside global Inside local Outside local Outside global icmp 202.98.38.2:41 192.168.1.2:41 202.98.38.5:41 202.98.38.5:41 icmp 202.98.38.2:42 192.168.1.2:42 202.98.38.5:42 202.98.38.5:42 icmp 202.98.38.2:43 192.168.1.2:43 202.98.38.5:43 202.98.38.5:43 icmp 202.98.38.2:44 192.168.1.2:44 202.98.38.5:44 202.98.38.5:44
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