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Re: [lwip-devel] IP data packets are forwarded although it should never
Re: [lwip-devel] IP data packets are forwarded although it should never work in theory, but why?
Tue, 06 Oct 2020 15:25:21 +0200
On 2020-10-06 14:56, Benjamin Kalytta wrote:
Is this an intended behaviour of LwIp stack or are there some options
to prevent that? Or could this be some bug?
This is how most IP stacks are implemented and is intended behaviour.
They consider the stack itself as an end node and not each interface
as an end node, so all configured IP addresses are reachable through
any interface. Mind you, packets are not forwarded between networks.
If there is enough general interest for hard separation between
interfaces and lwIP is willing to merge such configuration option
I can submit a patch for this feature.