User Manual

SPEEDLAN 9000 Series Installation and Operation User Guide Version 3.03
General Functions of the Configurator 3-49
• Internal Servers - Allows an administrator to make a service available from
an IP address, even though the owner of the IP address may not be actually
providing the service. See Internal Servers, page 3-58.
• 1:1 NAT - Allows an administrator to statically map a public IP address to the
private IP address of one of the nodes on your network. This is useful when
trying to preserve a limited number of IP addresses on the WAN network. See
1:1 NAT, page 3-60.
• Firewall - The SPEEDLAN 9000 (via the SPEEDLAN 9000 Configurator)
allows you to control incoming and outgoing traffic. A firewall prevents
unauthorized access to a network. Utilizing the SPEEDLAN 9000 Configurator,
SPEEDLAN 9000 routers can increase security and provide additional support
to users of the network. See Firewall, page 3-61.
• lP Sessions - The SPEEDLAN 9000 firewall offers stateful packet filtering. IP
Sessions allows you to view sessions whose state is currently active. See
IP Sessions, page 3-66.
Services
Network "Services" describe specific sessions between clients and servers, servers and
servers, or clients and clients on your network. Examples of servers that provide
services are web servers, FTP servers and email servers. Service definitions allow you to
forward public services inward to the internal (privately addressed) servers on your
network.
Note: You can also choose to allow or deny such services between networks or
individual nodes in the firewall section. For more information, see Firewall, page 3-61.