46
C
HAPTER
5: G
ATEWAY
C
ONFIGURATION
Security
Select
Security
to display the Advanced Settings screen. (Figure 43)
Figure 43
Security Screen
The Internet connects millions of computer users throughout the world. The vast
majority of the computer users on the Internet are friendly and have no intention
of breaking into, stealing from, or damaging your network. However, there are
people out there who may try to break into your network.
Allow PING from the Internet
PING is a utility, which is used to determine
whether a device is active at the specified IP address. PING is normally used to test
the physical connection between two devices, to ensure that everything is working
correctly.
By default the Gateway has PING disabled in order to make the device more
difficult to find on the Internet and less prone to attack.
This feature is enabled by clicking on the check box so that a tick can be seen and
then pressing the
Apply
button.
3Com recommends that you leave this disabled.
Disable Firewall
The Gateway contains a firewall that detects attack patterns
used by hackers on the Internet and once detected will block their access to your
network. When an attack is detected a log entry will be generated and the Alert
LED will be lit for 2 seconds. The firewall will block Internet access to all unused
ports.
The Firewall is disabled by clicking on the check box so that a tick can be seen and
then pressing the
Apply
button.
3Com recommends that you leave this enabled.
Summary of Contents for OfficeConnect 3C855
Page 16: ...16 CHAPTER 2 HARDWARE INSTALLATION ...
Page 20: ...20 CHAPTER 3 SETTING UP YOUR COMPUTERS ...
Page 54: ...54 CHAPTER 5 GATEWAY CONFIGURATION ...
Page 64: ...64 APPENDIX B IP ADDRESSING ...
Page 70: ...70 APPENDIX E END USER SOFTWARE LICENCE AGREEMENT ...
Page 72: ...72 APPENDIX F ISP INFORMATION ...
Page 78: ...78 INDEX ...
Page 79: ......
