Wireless Cable Modem Gateway Reference Manual

Reference Manual for the Model CG814M Wireless Cable Modem Gateway
1-2 Introduction
A Powerful, True Firewall
Unlike simple Internet sharing NAT routers, the CG814M Gateway is a true firewall, using stateful
packet inspection to defend against hacker attacks. Its firewall features include:
• Denial of Service (DoS) protection
Automatically detects and thwarts Denial of Service (DoS) attacks such as Ping of Death,
SYN Flood, LAND Attack and IP Spoofing.
• Configurable Port Forwarding, Port Blocking, Port Triggering and DMZ provide enough
flexibility for most applications.
• Blocks access from your LAN to Internet locations or services that you specify as off-limits.
• Logs security incidents
The CG814M Gateway will log security events such as blocked incoming traffic, port scans,
attacks, and administrator logins. You can configure the gateway to email the log to you at
specified intervals. You can also configure the gateway to send immediate alert messages to
your email address or email pager whenever a significant event occurs.
Content Filtering
With its content filtering feature, the CG814M Gateway prevents objectionable content from
reaching your PCs. The gateway allows you to control access to Internet content by screening for
keywords within Web addresses. You can configure the gateway to log and report attempts to
access objectionable Internet sites.
802.11b Standards-based Wireless Networking
The CG814M Gateway includes an 802.11b-compliant wireless access point, providing
continuous, high-speed 11 Mbps access between your wireless and Ethernet devices. The access
point provides:
• 802.11b Standards-based wireless networking at up to 11 Mbps
• 64-bit and 128-bit WEP encryption security
• WEP keys can be generated manually or by passphrase
• Wireless access can be restricted by MAC address.