From owner-freebsd-questions Thu Jun 6 13:51:32 2002 Delivered-To: freebsd-questions@freebsd.org Received: from buffnet4.buffnet.net (buffnet4.buffnet.net [205.246.19.13]) by hub.freebsd.org (Postfix) with ESMTP id 45B1C37B403 for ; Thu, 6 Jun 2002 13:51:17 -0700 (PDT) Received: from buffnet11.buffnet.net (buffnet11.buffnet.net [205.246.19.55]) by buffnet4.buffnet.net (8.9.3/8.8.7) with ESMTP id QAA84531; Thu, 6 Jun 2002 16:51:23 -0400 (EDT) (envelope-from shovey@buffnet.net) Date: Thu, 6 Jun 2002 16:51:10 -0400 (EDT) From: Stephen Hovey To: Joe & Fhe Barbish Cc: FBSDQ Subject: Re: adelphia cable dhcp In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG cable modems are cracker havens - I wouldnt let any unknown traffic in. On Thu, 6 Jun 2002, Joe & Fhe Barbish wrote: > Since recently getting internet access through Adelphia cable > service my ipfw firewall has been logging these two recurring packets. > > Deny P:2 192.168.100.1 224.0.0.1 in via rl0 > Deny UDP 10.21.68.1:67 255.255.255.255:68 in via rl0 > > Both 192.168.100.1 & 10.21.68.1 are reserved private ip ranges and > should not be coming in over the internet interface. > > I am guessing they are part of Adelphia's dhcp process, but want > confirmation before allowing then in through my firewall. > > Are there any FBSD IPFW Adelphia cable users out there who have seen > this and know what they are? > > Thanks > Joe > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message