Wireshark mailing list archives

Re: Ethernet padding in tcpdump captures?


From: Andreas Sikkema <h323 () ramdyne nl>
Date: Tue, 5 Nov 2019 14:28:55 +0100

Unless Linux is removing the padding before the packet gets to a PF_PACKET socket, I would expect to see padding for 
short Ethernet packets in captures on Linux, at least if not done on the "any" device.  For *outgoing* packets, you 
probably won't see the padding, but for *incoming* packets, I'd expect to see the padding on all OSes.

I was kinda hoping for masses of people screaming that they had never
seen Ethernet padding in a capture from a Linux machine.. Oh well, I
will ask the netfilter people again :-)

Thanks!

-- 
Andreas Sikkema
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