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From: Jason Opperisano <opie@817west.com>
To: netfilter@lists.netfilter.org
Subject: Re: No ICMP connections in /proc/net/ip_conntrack?
Date: Fri, 11 Feb 2005 13:45:46 -0500	[thread overview]
Message-ID: <20050211184546.GA3617@bender.817west.com> (raw)
In-Reply-To: <7bca1cb5050211094730ec3a1a@mail.gmail.com>

On Fri, Feb 11, 2005 at 11:47:37AM -0600, Asim Shankar wrote:
> However, if I "ping D" from A and B, then no entry seems to be present
> in ip_conntrack. My understanding based on:
> http://www.faqs.org/docs/iptables/icmpconnections.html is that I
> should see something in ip_conntrack.
> 
> Am I missing something?

yeah--you're just not that fast.  a conntrack entry is created when the
ICMP Echo-Request is received and removed when the Echo-Reply goes out.
the total elapsed time that the conntrack entry exists would be in the
very low millisecond range...and i don't think your cat is that fast.

-j

--
"Silly customer, you cannot hurt a Twinkie!"
        --The Simpsons


  reply	other threads:[~2005-02-11 18:45 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-02-11 17:47 No ICMP connections in /proc/net/ip_conntrack? Asim Shankar
2005-02-11 18:45 ` Jason Opperisano [this message]
2005-02-12 15:11   ` Alistair Tonner

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