From owner-freebsd-questions Sat Jun 24 10:13:24 2000 Delivered-To: freebsd-questions@freebsd.org Received: from dire.bris.ac.uk (dire.bris.ac.uk [137.222.10.60]) by hub.freebsd.org (Postfix) with ESMTP id 5A0A137B6CC for ; Sat, 24 Jun 2000 10:13:22 -0700 (PDT) (envelope-from Jan.Grant@bristol.ac.uk) Received: from mail.ilrt.bris.ac.uk by dire.bris.ac.uk with SMTP-PRIV with ESMTP; Sat, 24 Jun 2000 18:13:17 +0100 Received: from localhost (cmjg@localhost) by mail.ilrt.bris.ac.uk (8.8.7/8.8.8) with ESMTP id SAA23949; Sat, 24 Jun 2000 18:13:16 +0100 (BST) Date: Sat, 24 Jun 2000 18:13:16 +0100 (BST) From: Jan Grant To: Ganizani Phiri Cc: freebsd-questions Subject: Re: how do I change the TTL of the interface. In-Reply-To: <003e01bfdde9$74c9e490$03a994d0@webserver.malawi.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Sat, 24 Jun 2000, Ganizani Phiri wrote: > I have NT and FreeBSD on the same network. > > Pinging the NTs return the TTL of 128 > The FreeBSD returns the TTL of 255 > > Won't this cause interfacing problems between the machines. No, particularly if they're on the same network! TTL = "Time To Live" - the number of router hops a packet can make before it's dropped (this prevents routing loops slowly accumulating packets). Your installation ought to "just work" out of the box; if you're not sure what a particular network parameter does things might start misbehaving if you change it at random. I'm not saying I don't advocate experimentation; you just might not want it on a production network. If you're interested in learning more then vol. 1 of "TCP/IP Illustrated" by (the late) WRS is well worth a look. That and continued questions here - they seem like a friendly bunch! -- jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/ Tel +44(0)117 9287163 Fax +44 (0)117 9287112 RFC822 jan.grant@bris.ac.uk Semantic rules, OK? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message