Does my reouter borard RB450 have battery to store time ?
what should I put for ntp-primary and secondary IP addresses?No. This is a FAQ. Search the forums, this comes up once a week - RouterBOARDs have never had CMOS batteries, so it is expected that they lose time on reboot. You need to use NTP to sync them.
you can use 0.<zone>.pool.ntp.org and 1.<zone>.pool.ntp.org, zone is usualy 2 character ISO code of country (like 0.us.pool.ntp.org), but not all country codes works, try to resolve them first.what should I put for ntp-primary and secondary IP addresses?