W
EB
F
ILTER
I
NTRODUCTORY
S
ECTION
C
HAPTER
1: F
ILTERING
O
PERATIONS
M86 S
ECURITY
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SER
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WARNING
: M86 recommends contacting one of our solutions
engineers if you need assistance with router mode setup proce-
dures.
Firewall Mode
The firewall mode is a modification of the router mode. With
the Web Filter set up in this mode, the unit will filter all
requests. If the request is appropriate, the original packet
will pass unchanged. If the request is inappropriate, the
original packet will be blocked from being routed through.
Using the firewall mode, while the outgoing request is
delayed slightly—to allow filtering to take place before the
packet leaves the gateway router of the network—return
traffic remains unaffected.
Fig. 1:1-4 Firewall mode diagram, with firewall and cache setup