Flextronics Sales & Marketing Ltd. NC800-GW223R1 Manual Do Utilizador
Motorola Cellular Gateway NC800 User Guide Version 2.0
Page 64 of 110
Firewall
The firewall on the Motorola Cellular Gateway NC800 is a security software system that enforces an access
control policy between the Internet and the Motorola Cellular Gateway NC800 LAN. A firewall determines which
information passes in and out of the network.
There are five pages in the Firewall category:
Firewall-> Permanent Port Forwarding If external users from the Internet need to have access to certain
control policy between the Internet and the Motorola Cellular Gateway NC800 LAN. A firewall determines which
information passes in and out of the network.
There are five pages in the Firewall category:
Firewall-> Permanent Port Forwarding If external users from the Internet need to have access to certain
services on the LAN connected to the Motorola Cellular Gateway
NC800, then the relevant ports and the addresses of the devices
providing those services are specified on this page.
NC800, then the relevant ports and the addresses of the devices
providing those services are specified on this page.
Firewall-> Application Port Forwarding Some services provided to external users from the Internet need to
use different ports for inbound and outbound traffic. The relevant
ports and the addresses of the devices where these applications are
running are specified on this page.
ports and the addresses of the devices where these applications are
running are specified on this page.
Firewall-> MAC Address Filtering
If certain devices on the LAN must be prevented from accessing the
Motorola Cellular Gateway NC800, then their MAC addresses can be
specified on this page.
Motorola Cellular Gateway NC800, then their MAC addresses can be
specified on this page.
Firewall-> Port Filtering
If access to the Internet must be restricted, then the relevant
information is entered on this page.
information is entered on this page.
Firewall-> DMZ Host
If a DMZ host is provided, its IP address is specified on this page.
Firewall-> Permanent Port Forwarding
This function allows external users from the Internet to have WAN access to public services on the LAN
network. These public services are specialized Internet applications such as Web servers, FTP servers and e-
mail servers. These types of requests from the external users are forwarded by the Motorola Cellular Gateway
NC800 to the appropriate computer on the LAN network.
network. These public services are specialized Internet applications such as Web servers, FTP servers and e-
mail servers. These types of requests from the external users are forwarded by the Motorola Cellular Gateway
NC800 to the appropriate computer on the LAN network.
No port forwarding takes place unless at least one entry exists in the port forwarding table.
Any incoming packet
that does not match the port numbers on the incoming WAN interface is dropped.