2005

Frequently asked questions
Troubleshoot security protection
60
To allow the use of your local network, including file and
printer sharing, place the computers on your local
network in the Trusted Zone.
Why can’t I connect to the Internet via my cable
modem?
If your network accesses the Internet via a cable
connection, you may need to make your computer’s
NetBIOS name visible. While the NetBIOS name is
visible, the files and folders on your computer remain
hidden.
To make your NetBIOS name visible
1 In the main window, double-click Personal Firewall.
2 In the Personal Firewall window, on the Advanced
tab, click General.
3 In the General Rules dialog box, click Default
Inbound NetBIOS Name.
4 Click Modify.
5 In the Modify Rule dialog box, on the Action tab, click
Permit.
6 Click OK.
7 In the General Rules dialog box, click OK.
8 In the Personal Firewall window, click OK.
Some Internet service providers scan the ports on users’
computers to ensure that they are keeping to their
service agreements. Intrusion Detection might interpret
this as a malicious port scan and stop communications
with your cable system. If this occurs, you need to let
your cable provider run port scans.
To allow ISP port scans
1 In the main window, double-click Intrusion
Detection.
2 In the Intrusion Detection window, on the AutoBlock
tab, click Exclusions.
3 In the Exclusions dialog box, select the IP address
your ISP uses for port scans.
Your ISP can provide this information.
NIS2005.book Page 60 Sunday, August 1, 2004 3:24 PM