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Webcast-Catalyst9k
New Member

NTP authentication - server set-up help needed

Hi All,

I'm setting up a network lab at work and as part of this I have some servers including a FreeBSD 5 machine that I'm setting up with the usual MRTG, CFLOW, TFTP, FTP, SMTP and NTP to test system and devices.

I have most things working as I've done these before but I'm having trouble trying to set up xntpd to provide local clock (as fudged stratum 10) to the routers which is not too hard, but after trying to add authentication I receive only NTP authentication errors.

I've double checked that the key numbers are the same as is the key-string itself but no go.

Can anyone assist on this or suggest something to try?

Router config:

ntp authentication-key xxxxx

ntp authenticate

ntp trusted-key 1

ntp source Loopback0

ntp server 10.70.3.249 key 1 source Loopback0 prefer

ntp.conf:

server 127.0.0.1

fudge 127.0.0.1 stratum 10

keys /etc/ntp.keys

trustedkey 1

driftfile /etc/ntp.drift

logfile /var/log/ntp.conf

ntp.keys:

1 M ntpkey1

(This does match the type 7 key in the router config)

2 REPLIES
Silver

Re: NTP authentication - server set-up help needed

NTP configuration example is available in the documentation at http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/ffun_c/fcfprt3/fcf012.htm#1001128. Hope that helps.

Silver

Re: NTP authentication - server set-up help needed

Where you have "ntp authentication-key xxxxx", try this: "ntp authentication 1 xxxxx"

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