Re: tcpdump

Dale R. Worley (
Wed, 26 Feb 1997 11:47:56 -0500

From: (Alan Cox)

> tcpdump is still printing all packets twice when looking at the
> loopback device, probably because the kernel is returning them twice.

It sees them being sent and received. That is correct.

I take it that the same thing happens when you tcpdump an Ethernet and
ping yourself?

BTW, why isn't linux-kernel getting through to the newsgroup?