Cisco Nexus 7K as NTP server

[datamodule]

I want to configure cisco nexus as NTP server so that it can provide NTP source to other network devices.I am planning to configure the following configuration on my cisco nexus 7k

ntp master stratum 2
server0.europe.pool.ntp.org Prefer
server1.europe.pool.ntp.org
server2.europe.pool.ntp.org
server3.europe.pool.ntp.org
ntp source-interface mgmt0 

Is there anything else i need to configure and any security concerns if i allow NTP port on my firewall to nexus core 7K switches

Thanks for your help

[sean_evershed · Accepted solution]

Consult these secure NTP recommendations from Team Cymru.

Don't forget to rate all helpful posts.

http://www.team-cymru.org/ReadingRoom/Templates/secure-ntp-template.html