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EMINENT ADVANCED MANUAL
Port Triggering or Special Apps is based on the same principle as Virtual Server. Port
Triggering also enables you to make a computer within your network set up for
example as an FTP- or webserver, accessible from the Internet. The ports you
allocate always remain open when you use Virtual Server. With Port Triggering
however, the respective ports will only be opened if requested by the respective
application.
Simplifying network management
UPnP ‘Universal Plug and Play’: The name suggests that UpnP is very similar to the
well-known – and notorious – ‘Plug & Play’. Nothing is further from the truth. UPnP is
completely different technology. The line of approach is that UPnP appliances must be
able to communicate with one another via TCP/IP irrespective of the operating
system, the programming language or the hardware. UPnP should make the user’s life
considerably easier.
As well as the products from a limited number of other manufacturers, most Eminent
network manufacturers support UPnP. For more information on UPnP, visit:
www.upnp.org.
Blocking websites with explicit content
Parental Control enables you to prevent one or more computers in your network from
accessing the Internet. Parental Control often consists of several functions such as
‘URL Blocking’. This function blocks websites by way of so-called ‘keywords’ or
catchwords. Websites with explicit content are blocked in this way. URL Blocking is
often combined with time and/or date blocks. Such blocks enable you to allow or block
Internet access at certain times. You use ‘rules’ or ‘policies’ to set up your own
schedule of blocks (see also ‘Schedule Rule’). These rules describe exactly when and
on what, a certain action, in this case, a block, must be applied.
Checking data traffic at package level
The package filter (or ‘Packet Inspection’) is a programme that checks data packages
while they are passing. The intelligent package filter checks the passing dataflow or
business-specific definitions such as the IP- or user address, time and date, function
and a number of other definitions. The package filter can best be imagined as a
gatekeeper. The ‘gatekeeper’ screens the passers-by: ‘Who are you and where are
you going?’ The passers-by whom the gatekeeper considers unsafe or unreliable are
kept out.
You do not have to configure the package filter in most appliances. You only have the
option of activating these. The use of this option is therefore also definitely
recommended.