Re: [lwip-users] two logical ethernet interfaces on the same, physical port?

[Kamil Khoury]

Okay got it. Thank you and Simon again :) 

On Fri, 15 Jun 2018, 14:20 Sergio R. Caprile, <address@hidden> wrote:

You got things a bit confused.
lwIP is not a computer OS nor a device, is a TCP/IP stack. It provides
sevices for layer-3+. If you don´t need what rests over IP nor IP
itself, then you don't need lwIP.
Yes, you can use lwIP's "infrastructure" and have layer-2 protocols
coexist with the stack, you can even use the netifs by themselves and
forget about "the other part" of lwIP, taking advantage of pbufs and
existing Ethernet drivers.
If you need to read the bytes in Ethernet headers, you work at the netif
level. If you need two MACs on a physical port, you bridge them.
Regarding lwIP's take on raw sockets, this has been answered by Simon
several years ago. I don't think it has changed:
https://lists.gnu.org/archive/html/lwip-users/2011-11/msg00080.html


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