From owner-freebsd-security Fri Nov 12 8:16:15 1999 Delivered-To: freebsd-security@freebsd.org Received: from vinyl.sentex.ca (vinyl.sentex.ca [209.112.4.14]) by hub.freebsd.org (Postfix) with ESMTP id BB28C14F27 for ; Fri, 12 Nov 1999 08:16:07 -0800 (PST) (envelope-from mike@sentex.net) Received: from granite.sentex.net (granite-atm.sentex.ca [209.112.4.1]) by vinyl.sentex.ca (8.9.3/8.9.3) with ESMTP id LAA87952 for ; Fri, 12 Nov 1999 11:16:03 -0500 (EST) (envelope-from mike@sentex.net) Received: from simoeon (simeon.sentex.ca [209.112.4.47]) by granite.sentex.net (8.8.8/8.6.9) with SMTP id LAA17982 for ; Fri, 12 Nov 1999 11:16:03 -0500 (EST) Message-Id: <3.0.5.32.19991112111449.00b273f0@staff.sentex.ca> X-Sender: mdtpop@staff.sentex.ca X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.5 (32) Date: Fri, 12 Nov 1999 11:14:49 -0500 To: freebsd-security@freebsd.org From: Mike Tancsa Subject: safe protocols to eat via ipfw Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Apart from dropping spoofed addresses, what ICMP types do people generally block at their borders ? I noticed a lot of redirects coming at my dialups this morning from the outside world.... is deny icmp from any to any in recv icmptype 5 a good thing to do ? Does it break anything ? ---Mike ------------------------------------------------------------------------ Mike Tancsa, tel 01.519.651.3400 Network Administrator, mike@sentex.net Sentex Communications www.sentex.net Cambridge, Ontario Canada To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message