ntp question

[c-fay]

I can't set my outside router become a ntp client?

ntp server 193.204.114.231

#sh ntp status

Clock is unsynchronized.........

#sh ntp associations

address ref clock

~193.204.114.231 0.0.0.0 ...............................

But if I use a linux to become a ntp server,the router can correct receive ntp message!My linux ntp server still use 193.204.114.231 the public ntp server

and it can work well?

How do I let the router received outside public ntp server directory?

thankx~~

[j.viola]

ntp server x.x.x.x source FastEthernet0/0 prefer

(or other interface)

[c-fay]

Thank you !!!!

But I also have a stupit question:

In my lan,I install a ntp server,and the router

can use the command:

ntp server 172.16.100.100 prefer

172.16.100.100 is my ntp server and it can work not include set source interface.

I think maybe they are in the same subnet so can work,but

I have another router in the 172.16.82.0 subnet,it still can work well,

so I think even the router and the ntp server was in different subnet,

it still don't need set source interface,right?

why I don't need set source interface in this case?

and I need set when the ntp is in internet?

I am very confuse,thanks your answer~~