I guess I have to turn off NTP too on my VPN 3000 ? The manual change will have no effect if ntp is enabled because next time ntp will sync the time will be reset to gmt -+ X.

Charles

I had thought of that and agree that simply advancing the time an hour manually will not work with NTP configured. My theory is that if we change the selected time zone by an hour then the time used on the concentrator should be right.

A piece of good news that I heard today is that Cisco is working on new code for the VPN3000 series that will address Daylight Savings Time. They hope to have the code available by the end of February (cuttint it close).

HTH

Rick

Thanx for the update Rick.

Are you aware of any major problem having an vpn 3000 offset clock ? Maybe losing live vpn tunnels at 2:00 am 11-03-07?

Charles

I am not aware of any major problems of the VPN3000 changing time. It has been making the adjustment for Daylight Savings Time for quite a while with no problem that I am aware of. Now the issue is not that it would impact sessions but that it would not make the change on the correct date.

I guess that there might be some issues if the VPN3000 did not make the change on the correct date and other devices in the network did make the change, so that the concentrator was out of sync with other devices. Whether that creates a real problem would depend on the particular situation in your own network.

HTH

Rick