User`s guide

Touchstone® WTM552 Telephony Modem User’s Guide 40
Getting Battery Wireless Ethernet
Safety Started Installation Installation Configuration Configuration Usage Troubleshooting Glossary
Configuring the Firewall
The WTM552 provides a firewall to protect the computers on your home network
from unwanted access. The firewall provides the following features:
• Virtual Server Support: if you have a server on your home network that you
want to make available to the general Internet, you can configure a virtual
server. The firewall passes requests from the Internet to the designated
computer on your home network.
• DMZ: if you need to access a service that cannot pass through the firewall,
the DMZ allows a single computer on the home network to appear as if it
were connected directly to the Internet. A computer in the DMZ is complete-
ly exposed to the Internet as if there were no router or firewall, so it is best
to activate the DMZ only when necessary.
• Client filters: you can use client filters to block computers on your network
from accessing the Internet (or certain services) during specific days and
times.
• MAC Address filtering: allows access to the wireless network only by com-
puters specifically authorized to connect.
• Ping blocking: ignores ICMP (Ping) requests from the Internet.
Proceed to the next page to begin configuring the firewall.
Jump directly to one of the following topics:
• Configuration Basics
• Accessing the Configuration Interface
• Configuring System Settings
• Setting Up Your WAN Connection
• Setting the MAC Address
• Setting Up DNS
• Configuring the LAN Channel and Name
• Configuring Wireless Security
• Configuring the Firewall
— Configuring Virtual Servers
— Configuring Client IP Filters
— Configuring MAC Address Filtering
— Configuring the DMZ
• Configuring DDNS
• Configuring Wireless Bridging