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3.3.5 NAT Setting
Network Address Translation:
Enable/Disable NAT.
IPSec Pass Through:
IPsec (Internet Protocol Security) is a framework for a set of protocols for security at the
network or packet processing layer of network communication. Enable/Disable this framework verification.
PPTP Pass Through:
PPTP (Point-to-Point Tunneling Protocol) is a protocol that allows corporations to extend
their own corporate network through private "tunnels" over the public Internet. Enable/Disable this protocol
verification.
L2TP Pass Through:
L2TP (The Layer 2 Tunnel Protocol) is an emerging Internet Engineering Task Force (IETF)
standard that combines the best features of two existing tunneling protocols: Cisco's Layer 2 Forwarding (L2F)
and Microsoft's Point-to-Point Tunneling Protocol (PPTP). L2TP is an extension to the Point-to-Point Protocol
(PPP), which is an important component for VPNs. VPNs allow users and telecommuters to connect to their
corporate intranets or extranets. Enable/Disable this function.
SIP ALG:
SIP, the Session Initiation Protocol, is a signaling protocol for Internet conferencing, telephony,
presence, events notification and instant messaging. Enable/Disable this protocol verification.
NetMeeting ALG:
Enable/Disable this protocol verification.
Window Messenger File Transfer ALG:
Enable/Disable this protocol verification.
DMZ:
In computer networks, a DMZ (Demilitarized Zone) is a computer host or small network added as a "neutral
zone" between a company's private network and the outside public network. It prevents outside users from getting
direct access to a server that has company data.
