D-Link DI-604 User Manual download pdf (Page 36)

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Block WAN Ping

When you “Block WAN Ping”, you are causing the public WAN IP address

on the Broadband Router 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: By enabling this option, the DI-604 will not

reply to ping (ICMP) request packets from the Internet.

VPN Pass-Through

The Broadband Router supports VPN (Virtual Private Network)

pass-through for both PPTP (Point-to-Point Tunneling Protocol) and IPSec

(IP Security). Once VPN pass-through is enabled, there is no need to

open up virtual services. Multiple VPN connections can be made through

the Broadband Router. This is useful when you have many VPN clients on

the LAN network.

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D-Link DI-604 User Manual Page 36