Re: [developer] Raw ethernet packets

[Denis Kozadaev <denis@tambov.ru>]

On Friday 31 May 2024 18:04:22 Marcel Telka wrote:
> Thank you for the test!
>
> Was this tested on illumos?  Your `gcc -o tst main.c` suggests it is not
> a vanilla illumos machine because to link successfully I had to add
> -lsocket.
it was tested under dilos (probably illumos-like system)
the network stack is the same.


> There is definitely something strange because it does not work here.  I
> tried your main.c on a different machine (a virtualbox guest with
> up-to-date OpenIndiana) with replaced "dev0" by "e1000g0" and I see the
> same results:
>
> result = 60; errno = 0
>
> and no packet on the LAN.
What would I do?
connect an empty hardware NIC directly to another hardware NIC
and snoop traffic on the test host (on the test NIC)
you should see the same packet on the outgoing and remote NICs.
it could be a kernel or a hardware filter if you don't see packets on 
the remote NIC.


> Thanks.
you are welcome