DIR-620S  Wireless N300 Router with 3G/LTE Support and
USB Port
User Manual
Configuring via Web-based Interface
Parameter Description
Hostname
The name of the device assigned to its IP address in the local subnet.
Figure 90. Configuring the local interface. The IPv4 tab. The Dynamic IP Addresses section.
Parameter Description
Dynamic IP Addresses
Mode of dynamic IP 
address assignment
An operating mode of the router's DHCP server.
• Disable: The router's DHCP server is disabled, clients' IP 
addresses are assigned manually.
• Server:   The   router   assigns   IP   addresses   to   clients 
automatically in accordance with the  specified parameters. 
When this value is selected, the  Start IP,  End IP,  Lease 
time fields and the DNS relay switch are displayed on the 
tab. Also when this value is selected, the  DHCP Options, 
Static IP Addresses, and Hosts sections are displayed on 
the tab.
• Relay:   An   external   DHCP   server   is   used   to   assign   IP 
addresses   to   clients.   When   this   value   is   selected,   the 
External   DHCP   server   IP,  Option   82   Circuit   ID, 
Option 82 Remote ID, and  Option 82 Subscriber ID 
fields   are   displayed   on   the   tab.  Available   if  the  Router, 
WISP Repeater,  or  Mobile Internet  mode was selected  
in the Initial Configuration Wizard.
Start IP
The start IP address of the address range used by the DHCP server to 
distribute IP addresses to clients.
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