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Re: [lwip-users] Support for raw Ethernet packets?

From: address@hidden
Subject: Re: [lwip-users] Support for raw Ethernet packets?
Date: Wed, 24 Nov 2021 17:20:15 +0100
User-agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.3.2

Am 24.11.2021 um 16:33 schrieb Grant Edwards:
On 2021-11-24, Simon Küppers <simon.kueppers@2pi-labs.com> wrote:

If I understand you correctly, you could also use
LWIP_HOOK_UNKNOWN_ETH_PROTOCOL provided by LWIP, so you do not need to
implement separate receive queues.

That's interesting — it would allow you to receive arbitrary Ethernet
protocols, but there's no way to send them?

It's an integration for raw lwIP, not for the socket API. Sending raw
packets from raw lwIP is easy: just call netif->linkoutput() with the
pbuf to send on the netif you want to send on (or use ip_route() to get

You were previously asking about a linux-ish socket way to do that though.


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