Network; Tcp/Ip - ADT DVR7800S-U Series User Manual

Hybrid Standalone DVR User Guide

3.4 Network

This section is for inputting and viewing the network information.

3.4.1 TCP/IP

The network adapter interface is shown in Figure 3-25. Setup the network information as described
below.
MTU
Displays the Maximum Transmission Unit (MTU) value of the network adapter. The value ranges from
1280-7200 bytes. The default setup is 1500 bytes.
MTU modification can affect current network service and may result in a reboot of the network
adapter. When you change the MTU setup, a pop up dialog box appears for you to confirm the setup.
Click the OK button to confirm the reboot or click Cancel to terminate the modification. Before the
modification, verify that the MTU of the DVR is the same as or lower than the MTU of the gateway. In
this way, you can reduce packets and enhance network transmission efficiency.
The following MTU values are for reference only.
•
1500: This is the Ethernet information packet maximum value and the default. It is the typical
setup when there is no PPPoE or VPN. It is also the default setup of some routers, switches
and network adapters.
•
1492: Recommended value for PPPoE.
•
1468: Recommended value for DHCP.
DVR7800S-U Series Hybrid DVR User Guide
Figure 3-25
3 Local Menu Operations
64