D-Link DSL-2880AL User Manual page 66

Section 3 - Configuration
DMZ Setting
Please tick the Enable DMZ and type the DMZ computer IP on the DMZ
IP Address or you also can choose the DMZ host from the drop-down
menu instead of type in IP manually.
Application Level Gateway (ALG) Configuration
Please choose the following ALG to enable:
 PPTP (VPN Passthrough)
 IPSec (VPN Passthrough)
 RTSP(Online Video Streaming)
 Windows/MSN Messenger
 FTP
 H.323(Video Conferencing)
 SIP
 Wake-On-LAN
 MMS
D-Link DSL-2880AL User Manual 66