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linux ntp server with cisco 3850

jangkiyoun
Level 1
Level 1

hi all

i'm trying to make sync with linux ntp with cisco 3850  here is the what i did

linux centos 6.5 (on the ucs virtual machin) . this is a ntp server

ip 10.1.1.251

===================================================

For more information about this file, see the man pages
# ntp.conf(5), ntp_acc(5), ntp_auth(5), ntp_clock(5), ntp_misc(5), ntp_mon(5).

driftfile /var/lib/ntp/drift

# Permit time synchronization with our time source, but do not
# permit the source to query or modify the service on this system.
restrict default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery

# Permit all access over the loopback interface.  This could
# be tightened as well, but to do so would effect some of
# the administrative functions.
restrict 127.0.0.1
restrict -6 ::1

# Hosts on local network are less restricted.
restrict 10.1.1.0 mask 255.255.255.0 nomodify notrap

# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html)
#server 1.centos.pool.ntp.org iburs
#server 2.centos.pool.ntp.org iburst
#server 3.centos.pool.ntp.org iburst
server 127.127.1.0

fudge 127.127.1.0 stratum 2

#broadcast 192.168.1.255 autokey        # broadcast server
#broadcastclient                        # broadcast client
#broadcast 224.0.1.1 autokey            # multicast server
#multicastclient 224.0.1.1              # multicast client
#manycastserver 239.255.254.254         # manycast server
#manycastclient 239.255.254.254 autokey # manycast client

# Enable public key cryptography.
#crypto
includefile /etc/ntp/crypto/pw

# Key file containing the keys and key identifiers used when operating
# with symmetric key cryptography.
keys /etc/ntp/keys

# Specify the key identifiers which are trusted.
#trustedkey 4 8 42

# Specify the key identifier to use with the ntpdc utility.
#requestkey 8

# Specify the key identifier to use with the ntpq utility.
#controlkey 8

# Enable writing of statistics records.
#statistics clockstats cryptostats loopstats peerstats

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

and cisco 3850  configured this one

ntp server 10.1.1.241

and

show ntp status

clock is unsynchronized, stratum 16, reference is null

why...didn't work.. somebody help me..

1 Accepted Solution

Accepted Solutions

Steve Fuller
Level 9
Level 9

Is there a typo in your post or configuration? You show the NTP server IP address as 10.1.1.251, but the router configured to use 10.1.1.241.

Regards

View solution in original post

2 Replies 2

Steve Fuller
Level 9
Level 9

Is there a typo in your post or configuration? You show the NTP server IP address as 10.1.1.251, but the router configured to use 10.1.1.241.

Regards

yeah.. thank you. actually i changed ntp.conf file and then working well

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