I set up Router 1 (6506 or 4507) as the NTP server and Router 2 (6506 or 4507) as the NTP client.
However, a server attached to Router 2 shows it can pull time from Router 2. I didn't configure any NTP related config on the interface level (such as NTP broadcast, NTP multicast).
Why can my server pull time from Router 2? Is the router broadcast out NTP by default? Thanks.