[edit firewall]
set filter RESTRICT-NTP term 2 from source-address 192.168.10.10/32
set filter RESTRICT-NTP term 2 from source-address 192.168.10.1/32 <-change it router loopback address
set filter RESTRICT-NTP term 2 from protocol udp
set filter RESTRICT-NTP term 2 from port ntp
set filter RESTRICT-NTP term 2 then accept
set filter RESTRICT-NTP term 4 from protocol udp
set filter RESTRICT-NTP term 4 from port ntp
set filter RESTRICT-NTP term 4 then log discard
set filter RESTRICT-NTP term 5 then accept
[edit interfaces]
set lo0 unit 0 family inet filter input RESTRICT-NTP