AirLive IGR-1500 - Manual (Page 44)

3.11.2 Virtual Server
AirLive IGR-1500 ALG Options to allow IPSec, PPTP and VoIP pass-through, user can also define the port
number for ALG Options.
You may have FTP, MAIL, VPN or other server on your LAN. If you would like to allow the global users access
some servers providing special services on your LAN. This function can help you to do this.
Provide with global port & local port mapping function, let you easily configure internal server with same port
number mapping to WAN IP different port number.
ALG Options:
„ VPN Pass Through: For IPSec and PPTP
„ VoIP Pass Through: VoIP Gateway can be connected directly to IGR-1500 LAN port, and open the
corresponded VoIP port number.
(Figure 3-35)
Figure 3-35 ALG Options and Pass Through
Virtual Server:
„ Global port: WAN virtual protocol number
„ Global IP: WAN IP address
„ Local port: used by internal server port number
„ Local IP: local server IP address
(Figure 3-36)
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