PAT or Port Address Translation or also known as NAT Overloading is like a modified form of dynamic NAT where multiple inside local addresses are translated to single inside global IP address. It is the most popular form of NAT as the setup is the same what we use on our home connectivity as your Internet Service Provider (ISP) usually will only provide you 1 public IP to communicate with their internet router. Just remember the word many-to-one mapping. Objective:…
Tag: <span>NAT</span>
Here are the basic configuration on implementing different types of Network Address Translation (NAT) on Cisco Routers. Fig.1 Static NAT (1-to-1 Translation) (Objective: to translate PC-1 private IP of 192.168.0.2 to public IP 200.200.200.3) Configuration: Router1 Main Static NAT configuration: ip nat inside source static <Inside local IP> <Inside global IP> Sample Config: Router1(config)# ip nat inside source static 192.168.0.2 200.200.200.3 interface FastEthernet0/0 description Connection to PC-1 ip address 192.168.0.1 255.255.255.0 ip nat inside interface FastEthernet0/1 description Connection to Router2…
Network Address Translation or NAT, is a process of converting or translating a set of IP addresses to another set of IP addresses. Benefits of NAT: Solve IPv4 exhaustion issue by conserving IP address space. Cost effective as can connect multiple devices to Internet without to purchase multiple public IP Enhance security by hiding the internal devices on a private network behind single public IP Simplifies network reconfiguration as internal IP are hidden from external networks Easy to manage and…
Leave a Comment