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Re: [lwip-users] Issue with SO_BINDTODEVICE

From: Oliver Hitz
Subject: Re: [lwip-users] Issue with SO_BINDTODEVICE
Date: Tue, 27 Oct 2020 11:48:52 +0100
User-agent: NeoMutt/20170113 (1.7.2)

I have found the problem: It seems that lwip_listen() creates a new pcb
but doesn't copy the netbuf_idx field from the original pcb. If
lwip_setsockopt() is called after lwip_listen(), it works as expected.

I will submit a patch which fixes this behaviour, as I think we
shouldn't have to listen on all interfaces first before restricting it
to a single interface.



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