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Date:      Wed, 31 Oct 2001 08:10:30 -0500 (EST)
From:      Dru <genisis@istar.ca>
To:        "Noel V. Balansag" <pongkee@fibertel.com.ar>
Cc:        <questions@FreeBSD.ORG>
Subject:   Re: protocol type P:2, What's this??
Message-ID:  <20011031080732.V59312-100000@x1-6-00-50-ba-de-36-33.kico1.on.home.com>
In-Reply-To: <3BDFF545.2B6ED029@fibertel.com.ar>

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On Wed, 31 Oct 2001, Noel V. Balansag wrote:

> hi.
>
> i was looking through my messages logs and i saw a denied packet with
> the protocol type set to "P:2".
>
> The whole line says :
>         /kernel: ipfw: 1100 Deny P:2 192.168.100.1 224.0.0.1 in via ed0
>
> What does P:2 mean?? Can anyone please tell me. Am just curious.
>
> Btw, am using a cable modem to connect to the internet.

Hi Noel,

more /etc/protocols | grep -w 2
igmp	2	IGMP		# internet group management protocol
trunk-2	24	TRUNK-2		# Trunk-2
leaf-2	26	LEAF-2		# Leaf-2

Looks like IGMP. BTW, protocols are in the Layer 3 header and are listed
in /etc/protocols. Ports are in the Layer 4 header and are listed in
/etc/services.

Cheers,

Dru


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