NetNews Usenet Archive 1992 #31/NN_1992_31.iso/spool/comp/sys/next/sysadmin/7285

Internet Message Format | 1993-01-03 | 1.8 KB

Path: sparky!uunet!noc.near.net!transfer.stratus.com!transfer.stratus.com!usenet
From: [e-mail] (Dan Danz)
Newsgroups: comp.sys.next.sysadmin
Subject: Re: question about ntp
Date: 3 Jan 1993 14:41:29 GMT
Organization: Stratus Computer Inc, Marlboro MA
Lines: 26
Message-ID: <[e-mail]>
References: <[e-mail]>
Reply-To: [e-mail]
NNTP-Posting-Host: quiensabe.az.stratus.com

Bob Sutterfield writes
> In article <[e-mail]> [e-mail]
(Dan Danz) writes:
>    ...you can't just run the ntp daemon on your local machine because
>    it will forever be bringing up the dialup SLIP line.  So you have
>    to put up with some inaccuracy.
>
> If your SLIP (or PPP) software offers a packet filtering capability,
> this isn't a problem.  For example, my home workstation will pass NTP
> packets on the wire when the link is already up for some other
> purpose, but an NTP packet isn't interesting enough to cause the link
> to be brought up, nor does an NTP packet count against the idle timer.
> So the NTP daemon gets to look at its peers only when I'm already
> using the line for something else that matters more to me than
> timekeeping.

Does anybody know how to do this with Louie Mamakos' DialUpIP SLIP package?
I know that it can prevent dialup for protocols at the level of TCP, UDP, etc.,
but don't know how to specify not doing it for just NTP packets.

--
L. W. "Dan" Danz         (WA5SKM) VOS Mail:  [e-mail]
Sr Consulting Software SE         NeXT Mail: [e-mail]
Customer Assistance Center        Voice Mail/Pager: [phone]
Telecommunications Division       Customer Service: [phone]
Stratus Computer, Inc. 4455 E. Camelback #115-A, Phoenix AZ 85018