From owner-freebsd-security Sat Jun 10 12: 4:23 2000 Delivered-To: freebsd-security@freebsd.org Received: from apollo.backplane.com (apollo.backplane.com [216.240.41.2]) by hub.freebsd.org (Postfix) with ESMTP id 1437537BD4F for ; Sat, 10 Jun 2000 12:04:18 -0700 (PDT) (envelope-from dillon@apollo.backplane.com) Received: (from dillon@localhost) by apollo.backplane.com (8.9.3/8.9.1) id MAA22680; Sat, 10 Jun 2000 12:04:15 -0700 (PDT) (envelope-from dillon) Date: Sat, 10 Jun 2000 12:04:15 -0700 (PDT) From: Matthew Dillon Message-Id: <200006101904.MAA22680@apollo.backplane.com> To: Greg Hormann Cc: John F Cuzzola , security@FreeBSD.ORG Subject: Re: Setting up simple firewall with ipfw References: Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org You also need to allow ICMP messages through, or TCP will not be able to do path-mtu-discovery. I usually let pings through as well. add ..... allow icmp from any to any icmptypes 0,3,5,8,11,12,13,14 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message