What version of Solaris were you using? If you were using Solaris 10,
then the ntptrace command is the old version that uses the ref field as
the IPv4 address of the server. Since it does not rely on control or
private packets it can work even if "noquery" was specified on one of
the servers in the chain. Since the ref field cannot hold an IPv6
address, the ntptrace program was changed in NTP version 4 to use
control packets to find out the IP address of each server. This works
with both IPv4 and IPv6, but requires all the servers to allow control
packets.
On 1/23/2014 2:52 AM, ardi wrote:
I have tried to set up 3-level for ntp-setting:
xx.xx.xx.aa stratum 1 server (taking time from GPS)
-------------------------------------------------------
xx.xx.xx.b1
xx.xx.xx.b2 are stratum 2 servers acting as ntp-servers
--------------------------------------------------------
xx.xx.xx.c1
xx.xx.xx.c2 are stratum 3 ntp-clients
--------------------------------------------------------
NOTE: all clients have stratum 2 servers defined as ntp-server time sources.
a)
when doing ntptrace from a client (without parameter),
I am getting Timed out :
NOK:
client.c1 # ntptrace
localhost: stratum 3, offset -0.000033, synch distance 0.000230
xx.xx.xx.b1: timed out, nothing received
***Request timed out
client.c1 #
NOK:
client.c1 # ntptrace xx.xx.xx.b1 #towards stratum 2 server
xx.xx.xx.b1: timed out, nothing received
***Request timed out
OK:
client.c1 # ntptrace xx.xx.xx.aa #stratum 1 ntp-server
aa.dfdsf.sdff.lab: stratum 1, offset -0.000002, synch distance 0.000000, refid
'GPS'
client.c1 #
doing it from another client, which is solaris:
OK:
bash-3.00# ntptrace
localhost: stratum 3, offset 0.000026, synch distance 0.01694
xx.xx.xx.b1: stratum 2, offset 0.000160, synch distance 0.00133
aa.dfdsf.sdff.lab: stratum 1, offset 0.000315, synch distance 0.00021, refid
'GPS'
bash-3.00#
NOTE:
for xx.xx.xx.b1 the first line of ntp.conf is the following:
restrict default noquery nomodify notrap
b)
when i remove noquery parameter on stratum 2 ntp-server xx.xx.xx.b1 and restart
ntpd:
for xx.xx.xx.b1 the first line of ntp.conf is the following:
restrict default nomodify notrap
then ntptrace from client.c1 is ok
What causes that solaris clients work in both cases
and for client.c1 only in case, when noquery is removed from stratum 2 server?
Peter
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