Device configuration to use IPs within China

Client Configuration and Development
1

Hello. I’m attempting to configure some devices that need to be configured for all IP traffic to remain within China. I was able to configure them to use {0,1,2,3}.cn.pool.ntp.org, but at times a few of these are resulting in IP addresses outside of China. Is this the expected behavior?

Examples:
ntpd[4821]: DNS 1.cn.pool.ntp.org → 162.159.200.123
ntpd[5050]: DNS 1.cn.pool.ntp.org → 78.46.102.180
ntpd[5050]: DNS 3.cn.pool.ntp.org → 178.215.228.24

2

Yes. In a previous effort to save CN zone from being stormed by numerous clients, non-CN volunteered servers were added into CN zone. If you want CN-only time sources, maybe you can consider service from Cloudflare, which should be able to serve time from China based DC using anycast address.

1 Like
3

Yes exactly what alicia is saying.

If CN is served well, we will remove them step by step.