TANDBERG CODIAN 2200 用户手册

 

85 

The system date and time for the IP VCR can be set manually or using the Network Time Protocol (NTP).  

To configure Time settings, go to 

. 

The current system date and time is displayed. 

If you do not have NTP enabled and need to update the system date and/or time manually, type the new values and click 

. 

The IP VCR supports the NTP protocol. If you are using it, configure the settings as required, and then click 

. 

The IP VCR re-synchronizes with the NTP server via NTP every hour. 

If there is a firewall between the IP VCR and the NTP server, configure the firewall to allow NTP traffic to UDP port 
123. 

If the NTP server is local to Port A or Port B then the IP VCR will automatically use the appropriate port to communicate 
with the NTP server. If the NTP server is not local, the IP VCR will use the port that is configured as the default gateway 
to communicate with the NTP server, unless a specific IP route to the NTP server's network/IP address is specified. To 
configure the default gateway or an IP route, go to 

.  

Port A and B must be configured on different subnets 

If selected, use of the NTP protocol is Enabled on 
the IP VCR. 

   

The offset of the time zone that you are in from 
Greenwich Mean Time. 

You must update the offset manually when the 
clocks go backwards or forwards: the IP VCR does 
not adjust for daylight saving automatically. 

The IP address of the server that is acting as the 
time keeper for the network. 

   

If NAT is used between the IP VCR and the NTP server, with the IP VCR on the NAT's local network (and not the NTP 
server), no extra configuration is required. 

If NAT is used between the IP VCR and the NTP server, with the NTP server on the NAT's local network, then 
configure the NAT forwarding table to forward all data to UDP port 123 to the NTP server.