Purpose of adding static route

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Hi Team

We as SAs add static routes on servers which makes the server able to communicate to a particular network or host. I want to know the specific details on network layer that how exactly the communication starts happening after adding a route. How does the source starts communicating when we add route at destination?

Thanks

Responses

If you're adding static routes on the destination it's likely that the destination isn't aware of how to route the return/response traffic back so the source (ie. through its default gw). Depending on config, you may also have an asymmetric routing issue that is resolved by specifying static routes.

Without seeing the topology it's difficult to explain exactly why you need to add static routes in your environment and i'm only guessing.. but it will be due to the underlying network design.

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