From: David Yeu <dyeu@tulane.edu>
To: linux-newbie@vger.kernel.org
Subject: Re: eth0 promiscuous mode
Date: Fri, 30 Aug 2002 11:18:08 -0500 [thread overview]
Message-ID: <3D6F9AC0.2030501@tulane.edu> (raw)
In-Reply-To: 5.1.0.14.1.20020830063513.021bd240@celine
Ray Olszewski wrote:
>
> Normally, the firmware in a NIC filters incoming traffic and passes to
> the OS only those Ethernet frames that are addressed to the NIC's
> hardware (MAC) address. When in promiscuous mode, the NIC firmware
> passes ALL Ethernet frames up the ladder, not just ones sent to its MAC
> address. tcpdump is probably the most common app that uses promisc mode,
> but there are others.
Don't mean to hijack the thread, but I have a related question:
Will promiscuous mode work properly if my computer is plugged into a
switch? I've tried unsuccessfully to use tcpdump or tethereal to view
all the network traffic, but I'm always confined to traffic that either
originates or is destined to my machine (broadcasts too). Or is it
perhaps the NIC? Do all NICs have the ability to go into promiscuous
mode?
Thanks in advance.
Dave.
-
To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.linux-learn.org/faqs
next prev parent reply other threads:[~2002-08-30 16:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-30 4:01 eth0 promiscuous mode Natarajan K
2002-08-30 4:10 ` Ray Olszewski
2002-08-30 8:06 ` Axel Siebenwirth
2002-08-30 13:40 ` Ray Olszewski
2002-08-30 16:18 ` David Yeu [this message]
2002-08-30 16:24 ` Ray Olszewski
2002-08-30 16:33 ` Nathan
-- strict thread matches above, loose matches on Subject: below --
2002-08-30 8:28 Joseph Jackson
2002-08-30 8:29 ` Axel H. Siebenwirth
2002-08-30 10:50 ` Mojo Jojo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3D6F9AC0.2030501@tulane.edu \
--to=dyeu@tulane.edu \
--cc=linux-newbie@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.