
89
be the same or lower than the MTU of the gateway. This way, packets can be reduced, and the network
transmission efficiency be enhanced. The following MTU values are for reference only.
•
1500:
Ethernet information packet maximum value and it is also the default value. It is the typical setup when
there is no PPPoE or VPN. It is the default setup of some routers, switches, and network adapters.
•
1492:
Recommend value for PPPoE.
•
1468:
Recommend value for DHCP. Preferred DNS server: This field allows the user to enter the DNS server IP
address.
•
Alternate DNS server: This field allows the user to enter the Alternate DNS server IP address.
•
LAN download: This checkbox allows the user to enable the user to process the downloaded data first. The
download speed is 1.5X or 2.0X compared to the normal streaming speed.
Note:
To test the network connections set in this menu, click on the
Test
button. To apply the settings to your DVR,
click on
Apply
. If you wish to exit this menu, click on the
Back
button.
6.2.2. Connection
This screen allows users to configure port connections. It is important that the system is rebooted if any changes
are made to the settings on this screen. Also, ensure that port values do not conflict. Below is a screenshot of the
connection screen:
Below is an explanation of the fields on the Connection settings screen:
•
Maximum Connection
: This field represents the maximum number of users that can be connected to the DVR at
the same time. The maximum number of users the DVR can support at one time is 128.
•
TCP Port:
This field designates the Transmission Control Protocol (TCP) port number. The default value is 37777.
•
UDP Port:
This field designates the User Datagram Protocol (UDP) port number. The default value is 37778.
•
HTTP Port:
This field designates the Hypertext Transfer Protocol (HTTP) port number. The default value is 80.
•
RTSP Port:
This field designates the Real Time Streaming Protocol (RTSP) port number. The default value is 554.
•
HTTPS Port:
This field designates the Hypertext Transfer Protocol Secure (HTTPS) port number. The default value
is 443.