Re: NTP

From: SFeldberg@xxxxxxxxxxxxx
Date: Fri Aug 10 2001 - 11:53:33 GMT-3

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My understanding of the ntp syntax is that the ntp authenticate is for time
sources:

R1(config)#ntp ?
  access-group Control NTP access
  authenticate Authenticate time sources
  authentication-key Authentication key for trusted time sources

Therefore, the ntp authenticate command would need to be on your R2 and R3
with the authentication-key, while R1 would not be required to have the ntp
authenticate command at all.

Steve

                    David

                    Esterbrook To: "'Ccielab@Groupstudy. Com'"

                    <esterbrookd@ya <ccielab@groupstudy.com>

                    hoo.co.uk> cc:

                    Sent by: Subject: NTP

                    nobody@groupstu

                    dy.com

                    08/10/2001

                    08:39 AM

                    Please respond

                    to David

                    Esterbrook

 I was playing with NTP with auth using my r1 as my
master and r2 should sync with r1 ( and it does )but
my r3 which only has an ntp server statement with out
auth still syncs. what am I doing wrong ?

-david
r1
ntp authentication-key 1 md5 cisco
ntp authenticate
ntp trusted-key 1
ntp source Loopback0
ntp master

r2
ntp authentication-key 1 md5 cisco
ntp authenticate
ntp trusted-key 1
ntp server 192.168.1.1 key 1

r3
ntp server 192.168.1.1

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