What Technique Allows For Inbound Traffic Through a Nat?
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What Technique Allows for Inbound Traffic Through a Nat?
Answer: Port forwarding is the method that allocates the inbound traffic through NAT. With the help of it, the traffic is move toward the specified destination behind NAT.it gives the service even if the services are private or to any non-routable address.
For internet access, the public address is required but we can also use the private address of the network. The NAT (Network Address Translation) is used for multiple devices’ access to the internet with one public address. For it, only the private network IP address and public address are needed.
In NAT for the access of the local host more than one local address is translated to the Global ip address (either one or more) and vice versa. NAT does the port number translation such as the packet which is forwarded toward the network, the port number of the host is masked with other port numbers. Then the entries are recorded of the IP address and port number in the NAT table. Most of the time, NAT works on a router or a firewall.
The router on a broad scale is configured for NAT like the router that contains one interface of the local and one for the global network.it works when the packet moves outside the network (local), the NAT work and translates the local (private) IP address to the global IP address and when the packet moves inside the local network, the global IP address is translated to the Local IP address. If the number of addresses is finished in NAT and none of the addresses remains in the configured pool, the packets drop, and unreachable hosts of ICMP packets are sent to the destination.
Some of the benefits and drawbacks of the NAT are described in the following:
Pros:
Cons: