Siemens SX541 WLAN dsl User Manual
81
Configuring the Advanced Settings
Gigaset SX541 WLAN dsl / englisch / A31008-M1025-L101-1-7619 / configure_router.fm / 21.07.2005
Sc
hablone 2005_05_02
u
Stateful Packet Inspection
Your device monitors and limits the access of incoming traffic from the Internet with
SPI (Stateful Packet Inspection). This allows it to identify and block certain types of
attack such as Denial-of-Service (DoS). A typical DoS attack involves a remote com-
puter paralysing a system and announcing that it is acting for the paralysed device
in order to receive the data meant for it. For the level Custom you can specify your-
self whether you wish to activate SPI on your device and which exceptions you wish
to make.
Your device monitors and limits the access of incoming traffic from the Internet with
SPI (Stateful Packet Inspection). This allows it to identify and block certain types of
attack such as Denial-of-Service (DoS). A typical DoS attack involves a remote com-
puter paralysing a system and announcing that it is acting for the paralysed device
in order to receive the data meant for it. For the level Custom you can specify your-
self whether you wish to activate SPI on your device and which exceptions you wish
to make.
ì
Activate or deactivate Stateful Packet Inspection for your device's Internet connec-
tion.
tion.
ì
Select the services for which you also wish to allow incoming Traffic if it has been
initiated by a client in your LAN. If you select the All option at the end of the list you
can permit all services.
initiated by a client in your LAN. If you select the All option at the end of the list you
can permit all services.
ì
Click OK to apply the settings.
Setting up Access Control to the Internet
The Access Control function allows you to block access to various Internet services for
one or more PCs. You can limit these blocks to certain days and hours with Schedule
Rules.
one or more PCs. You can limit these blocks to certain days and hours with Schedule
Rules.
ì
Select Access Control in the Advanced Settings – Internet – Firewall menu.
ì
Activate the Access Control function via the option On.