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Date:      Mon, 13 Aug 2001 22:29:59 +0100
From:      Richard Smith <rdls@satamatics.com>
To:        default - Subscriptions <default013subscriptions@hotmail.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: How to allow pings through IPFW
Message-ID:  <20010813222959.B1208@gaia.home.rdls.net>
In-Reply-To: <OE28tg2c7qIA3EEmYDK000050b2@hotmail.com>; from default013subscriptions@hotmail.com on Mon, Aug 13, 2001 at 01:28:34AM -0500
References:  <OE28tg2c7qIA3EEmYDK000050b2@hotmail.com>

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On Mon, Aug 13, 2001 at 01:28:34AM -0500, default - Subscriptions wrote:
> Hi,
> 
> I'm fairly new to IPFW, and although I have added this rule to my
> rc.firewall, I am still unable to ping other hosts from my system. I do not
> get any error message or anything... I assume there must be some kind of
> block on the receipt of ping data back from the host...
> 
> Here is the rule that I added:
> $fwcmd add allow icmp from any to any

This should be enough, assuming that you've put it in the right place.
ICMP packets may be block elsewhere outside of your network. 
Use `tcpdump' on your external interface to see whats really going on.

-- 
Richard Smith
Network Systems Director
Satamatics Ltd
Green Lane, Tewkesbury, GL20 8HD, United Kingdom
Tel: +44 1684 278610
Fax: +44 1684 278611

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