cisco ccna 5. fejezet vizsga megoldások

cisco ccna 5. fejezet vizsga megoldások.A multimedia demonstration of configuring dynamic NAT on a router is included in the companion digital resource to this book.22.3.2 Configuring PATThe previous example demonstrated the configuration of dynamic NAT; this section describes how to configure PAT on a routeroPAT configuration is much like dynamic NAT and also requires three basic translation commands. First, you need to specify which internal devices' source addresses are to be converted, using the same commands as dynamic NAT, but you need to specify that PAT is to be performed using the parameter overload.Router(config)# ip nat inside source list standard_IP_ACL_^ pool NAT_pool_name overloadNext, specify the global address pool to be used. Again, the same commands are used as for dynamic NAT.Router(config)# ip nat pool NAT_pool_name beginning_inside_global_IP_address ending_inside ide_global_IP_address netmask subnet_mask_of_ addressesMultiple addresses can be specified in the PAT using the start and end addresses, or just one IP address. Finally, the commands ip nat inside and ip nat outside must be used to tell IOS which interfaces are internal and which are external.The following example in Figure 22.3 shows how to configure the PAT. in this example, 200.200.200.1 is used for static translation of the internal server. In the address pool, only one other IP address (200.200.200.2) is included, and the PAT is performed for only two devices: 192.168.1.10 and 192.168.1.llo configured as follows.Router(config)# ip nat inside source list 1 pool nat-pool overload Router(config)# access-list 1 permit host 192.168.1.10Router(config)# access-list 1 permit host 192.168.1.11 ip nat pool nat-pool 200.200.200.2 200.200.200.2