Could you explain the important differences between a bridge and a gateway?
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A gateway joins two dissimilar networks. There can be a lot of protocol conversion work to do. Often the gateway needs to be configured on client systems where communications are directed to the gateway and then some address mapping is provided to get the message to the recipient on the other side.
There is always a lot of discussion about this - as well as router. An IP router can join dissimilar networks but use the same address space (IP addressing).
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