M5350 
3G Mobile 
4.4.3.1. Basic Settings
Figure
IP Address: The IP address of the device, which is used to log in its
Subnet Mask: An address code that determines the size of the network. Normally use 255.255.255.0 as the subnet mask.
DHCP Server: You can select to enable or disable the DHCP server. If you disable the server, you must have another DHCP server within your network, or else you must configure the IP address of the host(s) manually.
Start IP Address: This field specifies the first address in the IP address pool. 192.168.0.100 is the default start IP address.
End IP Address: This field specifies the last address in the IP Address pool. 192.168.0.199 is the default end IP address.
Lease Time: It is the length of time a network user will be allowed to keep connecting to the device with the current IP address (that is assigned by the DHCP server). Enter the amount of time, in minutes, that the IP address will be "leased". The time range is 1~2880 minutes. The default value is 120 minutes.
Primary DNS Server: Input the DNS IP address provided by your ISP. It is optional. The default primary DNS server IP is 192.168.0.100.
Secondary DNS Server: Input the IP address of another DNS server if your ISP provides two DNS servers. It is optional. The default secondary DNS server IP is 192.168.0.199.
Click Save to save the changes.
Note:
To use the DHCP server function of the Device, you should configure all the clients in the LAN as "Obtain an IP Address automatically" mode.
