NTP Impact

[stuart.jones]

Hi,

I have a number of Pix FW's which currently are not running NTP. I plan to set this up but was wonderig if doing so would have impact on traffic already connected through the Pix.

My concern is that the change in the time when the NTP syncs will cause issues with entries in the connection and xlate tables.

Does anyone have any ideas if this will be services affecting ?

Thanks

[a.kiprawih]

NTP will not have any impact of the passing/existing production traffic. It updates your PIX/ASA clock that will be reflected on your connection timestamp or log entries.

This is similar when configuring your router with NTP.

myPIX(config)# ntp server 10.1.1.1 key 1 prefer

myPIX(config)# ntp server 10.2.1.1 key 2

myPIX(config)# ntp authenticate

myPIX(config)# ntp trusted-key 1

myPIX(config)# ntp trusted-key 2

myPIX(config)# ntp authentication-key 1 md5 secretkey1

myPIX(config)# ntp authentication-key 2 md5 secretkey2

HTH

AK