NTP not sync'ing - what interface is used?

Hi Anthony,

It depends on how the system has a route to the NTP servers. Most people would configure that via their management network, so then the NTP would be reachable via eth0 on the F5. The first step would be for you to ping one of those servers and see if you've got L3 connectivity to them. If that's ok, then the next step would be for you to take a tcpdump on port 123 and see if the F5 is egressing any traffic to those addresses. Again, if you've got routing via management, then the syntax is: tcpdump -nni eth0 port 123 -w /var/tmp/ntp.pcap If you have your routing through the selfIPs, then the syntax is: tcpdump -nni 0.0 port 123 -w /var/tmp/ntp.pcap

I hope this proves somewhat useful.