User manual

Packet Filters 8-

NETServer Filtering Applications

Once created, a packet filter can be designated for use in any of

the following applications:

• Filter packets exchanged with the local network

• Control which hosts all login users can access

• Control which hosts a specific login user can access

• Control which packets can initiate an outgoing call

• Filter packets passing through a hardwired connection

• Filter packets exchanged with a specific network user

• Filter packets exchanged with a specific dial-out user

Information Sources

Internet packet filtering and security are complex issues. The

goal of this chapter is to provide an overview of NETServer

filtering capabilities. For more detailed information on this

topic, refer to the following information sources:

• Cheswick and Bellovin, Firewalls and Internet Security:

Repelling the Wily Hacker, Addison Wesley, 1994,

ISBN 0-201-63357-4

• Siyan and Hare, Internet Firewalls and Network Security,

New Riders Publishing, 1995, ISBN 1-56205-437-6