Gateway
A gateway in networking works as an entrance for another network. They are also known as protocol converters. It can operate at any network layer. A gateway is often associated with a router or a switch although other devices can act as a gateway.
A computer server that acts as a gateway node often acts as a proxy server or a firewall server. It is an essential feature of a router. There are two types of gateways which are as follows:
- Unidirectional Gateway
- Bidirectional Gateway
Unidirectional Gateway:
Unidirectional gateways allow alerts to flow in one direction only.
These gateways are considered as archiving tools. The changes that are made in the source are replicated in the destination server but changes made in the destination server are not replicated in the source server.
Bidirectional Gateway:
Bidirectional gateways allows alerts to flow and replicate in both direction( the source and the destination). These gateways are also considered as Synchronization tools.
The IP which we will assign to the router will be the default gateway to all the interfaces connect to the router. If a network has a base IP address of 10.0.0.0 with a subnet mask of 255.0.0.0 then any packet which is going outside of 10.0.0.X will be sent to the network's gateway.
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