I
NTRODUCTORY
S
ECTION
C
HAPTER
1: F
ILTERING
O
PERATIONS
M86 S
ECURITY
U
SER
G
UIDE
13
Invisible Mode
If the Web Filter is set up in the invisible mode, the unit will
filter all connections on the Ethernet between client PCs and
the Internet, without stopping each IP packet on the same
Ethernet segment. The unit will only intercept a session if an
inappropriate request was submitted by a client. In this
scenario, the Web Filter returns a message to the client and
server to deny the request, and a block page displays to
deny the client access to the site or service.
Figure 1:1-1 depicts the invisible mode that removes the
Web Filter from any inclusion in the network connection
path.
Fig. 1:1-1 Pass-by filtering diagram