From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Fri Oct 08 2004 - 12:38:26 GMT-3
Use a time-based ACL with your dialer-list to allow NTP to trigger a
call once a week or whatever frequency you like.
Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
wing_lam@jossynergy.com
Sent: Friday, October 08, 2004 12:32 AM
To: ccielab@groupstudy.com
Subject: NTP question
Dear Group,
I have a two site A & B in two cities, connected through oversea ISDN.
Site
B is stub that no Internet access.
Also, as the ISDN is expensive so I don't want site B router sync it's
time
to site A through ISDN, it will make the ISDN keep up and down. But it
is a
must to make the router has a precise time as the access-list inside are
reference to the time based access-list.
i) How can I configure the NTP so that once it is synced, no more
packets
send?
ii) Any suggested time source (may be a software in a WIN 2000 PC, or a
simple device that plugs into the network) for our router to sync to in
site B? Can this device becomes a time source (ntp master) and provide
time
service but no need to reference to another outside time source?
Thanks,
BBD
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