From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Tue Sep 05 2006 - 23:44:56 ART
Did you read through all four of the cases in the white paper from our
website? We also included verifications for each of the cases. You
should be looking at the last case as the first three cases show common
misconfigurations.
HTH,
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
Michy Eika
Sent: Tuesday, September 05, 2006 7:34 PM
To: ccielab@groupstudy.com
Subject: Correct NTP Authentication ?
Hello folks
I'm confused about NTP authentication.
In accord with following web site, In the side of NTP master
authentification configuration is like below.
http://www.cisco.com/en/US/tech/tk869/tk769/technologies_white_paper0918
6a00
80117070.shtml
########################################################
ntp master 3
!--- When the system sends an NTP packet, the
!--- source IP address is normally set to the
!--- address of the interface through which the
!--- NTP packet is sent.
!--- Change this to use loopback0.
ntp source Loopback0
!--- Enables NTP authentication.
ntp authenticate
ntp authentication-key 1234 md5 104D000A0618 7 ntp trusted-key 1234
########################################################
But in IEWB-RS following website, the configuration is such as below.
http://www.internetworkexpert.com/resources/ntp-authentication.htm
########################################################
R1#clock set 00:00:00 1 Jan 2000
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#ntp master 1
R1(config)#ntp authentication-key 1 md5 CISCO
########################################################
Which one is correct ???
TIA
Michy
This archive was generated by hypermail 2.1.4 : Sun Oct 01 2006 - 16:55:40 ART