Ping Test
Ping Test is used to send "Ping" packets to test if a computer is on the Internet.
Host Name or IP address
Restart Device
Reboots the DI-604.
Block WAN Ping

When you "Block WAN Ping", you are causing the public WAN IP address on the DI-604 to not respond to ping commands. Pinging public WAN IP addresses is a common method used by hackers to test whether your WAN IP address is valid.
Discard PING from WAN side Enabled Disabled
UPNP Settings
Enabled Disabled
Gaming Mode
Enabled Disabled
VPN Pass-Through
Allows VPN connections to work through the DI-604.
PPTP
Enabled Disabled
IPSec
Enabled Disabled
Dynamic DNS
DDNS
 Enabled Disabled
Server Address
Host Name
Username
Password