Filtering internet access, Preventing ping attacks from the internet, Restricting access of local pc's to the internet – Siemens SE505 User Manual
Page 82: Filtering internet, Access
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Configuration with Advanced Setup
Gigaset SE505 dsl/cable / English / A31008-E505-B100-1-7619 / configure_router.fm / 16.07.2003
Filtering Internet access
You can use the Filter menu to make settings that will enhance the security of your
network. You can
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protect your LAN against ping attacks from the Internet (see below),
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restrict Internet access to selected PC's and for selected services (see below), and
◆
restrict access by members of your LAN to selected websites (see page 85).
Preventing ping attacks from the Internet
Ping is a command which can be used on the Internet to find out the existence of
network members. If your router is 'visible' on the Internet, it may be an easy target for
attack by hackers. You should therefore deselect this option.
For test purposes, trouble-shooting etc. it may be useful to reply to a ping, and you can
enable the option temporarily in this case.
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In the Filter menu, select Internet Services.
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Select or deselect WAN Port Ping Reply.
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Click on APPLY to apply the setting.
Restricting access of local PC's to the Internet
By default, your router is set up to allow all PC's that are logged on to it to use all Internet
services.
You can use the filter function to specify which PC's are allowed to use which service,
and so enhance the security of your LAN. To do this, use the Filter screen shown above.
i
You will find an example of how to create an Internet filter in "Practical
Tips and Configuration Examples" on the CD supplied.