Configure F5 LTM as NTP server

Hi,

 

 

Some information update on the below issue I faced.

 

 

I have deployed 2 x F5 LTM (Active-Standby) and configured them as the NTP server for my other network equipments. I am using the individual appliance management IP rather than the float self IP and when I do a cat bigip_sys.conf, I discovered that the NTP server configuration on the standby is listening on the primary (active) appliance management IP instead of its own management IP which I have configured.

 

 

Thus, I would like to ask if this is normal or it is a must to use the float self IP as the listening if we are going to configure the F5 appliance as the NTP server for other network device to sync time with?

 

 

Thks in advance.

 

 

Rgds

i guess you configured ltm as ntp server using b ntp include command (sol11237) which is stored in bigip_sys.conf. according to sol7024, bigip_sys.conf is synchrnoized between unit in ha pair.

 

 

sol11237: Defining advanced NTP configurations on the BIG-IP system

 

http://support.f5.com/kb/en-us/solutions/public/11000/200/sol11237.html

 

 

sol7024: Overview of the ConfigSync process

 

http://support.f5.com/kb/en-us/solutions/public/7000/000/sol7024.html

 

 

Felkor has posted how to exclude syslog include from configsync in the following discussion topic. as i checked, i think it is applicable for ntp include as well but not sure if it is a good idea.

 

 

Syslog & Source IP on cluster

 

https://devcentral.f5.com/Community/GroupDetails/tabid/1082223/asg/44/aft/2161882/showtab/groupforums/Default.aspx

 

 

hope this helps.

Hi Nitass,

 

 

Thanks for sharing the information. Its really help.

 

 

Rgds