SIP User's Manual 238 Document #: LTRT-12804
Mediant 800 MSBG
b. Configure the VPI, VCI, encapsulation variant and class-of-service parameters as
provided by your ISP. Note that the VPI/VCI combination must be unique in an
SHDSL group.
c. If required by your ISP, configure the IP addressing parameters (IP address,
network mask, DNS server information); otherwise, use the default setting
"Obtain an IP address automatically".
d. For PPPoE and PPPoA links, enter the user name and password for the
connection.
e. Click Next and then Finish to complete creating the connection.
12. Repeat as necessary for any additional ATM interfaces.
3.3.3.3 Firewall and ACL
The Firewall and ACL menu allows you to configure various security applications. The
device's security suite includes comprehensive and robust security services: Stateful
Packet Inspection Firewall, user authentication protocols and password protection
mechanisms. These features together allow users to connect their computers to the
Internet and simultaneously be protected from the security threats of the Internet. The
device's firewall has been pre-configured to provide optimum security (see the figure
below).
Figure 3-140: Device's Firewall (Example)
The device's firewall provides both security and flexibility. It provides a managed,
professional level of network security while enabling the safe use of interactive
applications, such as Internet gaming and video-conferencing. Additional features,
including surfing restrictions and access control, can also be easily configured locally by
the user through a user-friendly Web-based interface, or remotely by a service provider.
The firewall supports advanced filtering, designed to allow comprehensive control over the
firewall's behavior. You can define specific input and output rules, control the order of
logically similar sets of rules and make a distinction between rules that apply to WAN and
LAN network devices.
The Firewall and ACL menu includes the following items:
General Security: allows you to choose the security level for the firewall (see
''Configuring General Security Settings'' on page 239).
LAN Res
trictions: allows you to restrict access from the device's LAN network to the
Internet (see ''Configuring LAN Restrictions'' on page 240).
Port Forwarding: allows you to enable access from the Internet to specified services
provided by computers in the network and special Internet applications (see
''Configuring Port Forwarding'' on page 242).
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