Linkskey LKR-604 - Manual (Page 26)

25
3.6.4 Passthrough
VPN: VPN including PPTP, IPSEC and L2TP, if checked, the internal network and external
network can directly establish a corresponding VPN services, without NAT affect
FTP: FTP server with non-standard port, can prevent the conflict which has established a
connection with fit data channel
NetMeeting: The internal network NetMeeting services establish connections directly with external
network NetMeeting services, without NAT affect
3.6.5 DMZ
If you have a client PC that cannot run Internet application properly from behind the NAT firewall
or after configuring the Special Applications function, then you can open the client up to
unrestricted two-way Internet access. Enter the IP address of a DMZ host to this screen. Adding a
client to the DMZ (Demilitarized Zone) may expose your local network to a variety of security risks,
so you can only use this option as a last resort.