Go CCIE Go!! - A Cisco Certified Internetwork Expert

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