PIX as a NTP server for inside networks

I currently have my PIX receiving NTP of a trusted external source. I would put my switches to pick up their time to the PIX. I don't see anywhere that it is possible. I have tried using my interior of interface as the source server for the customers, but they never receive NTP messages and remain unsynchronized.

Our PIX is the internal common points for each of our offices (they create our web of connections Internet VPN tunnels) and are the logical choice for traffic NTP ditribute throughout our org.

Can someone answer for sure that PIX will act as NTP servers when it is called by clients configured for example:

Insside source NTP server (PIX1_IP)

This works when PIX1_IP is actually all other(non-PIX) NTP internal source.

For security reasons, the PIX is only an NTP client. Is not a NTP server and response to queries from the NTP clients. PIX does not meet the NTP queries. If you enable logging on the PIX you can see a syslog message

% 3 PIX-610001: int_name of interface for the NTP daemon: package refused to

IP_addr

OR similar.

Hope that helps!

Tags: Cisco Security

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