Chapter 5
Advanced Configuration
35
5.5 IP
FILTERING
The Co mp e x MRL21E sup p o rts IP Filte ring , whic h a llo ws yo u to e a sily se t up rule s to c o ntro l
inc o ming a nd o utg o ing Inte rne t tra ffic . The MRL21E p ro vid e s two typ e s o f IP filte ring :
•
Outgoing IP Filtering:
By d e fa ult, Co mp e x MRL21E a llo ws a ll o utg o ing Inte rne t tra ffic fro m the LAN b ut b y se tting
up
Outgoing IP Filtering
rule s, yo u c a n b lo c k so me use rs a nd / o r a p p lic a tio ns fro m
a c c e ssing the Inte rne t.
•
Incoming IP Filtering:
By d e fa ult, whe n NAT is e na b le d , a ll inc o ming IP tra ffic fro m WAN is b lo c ke d e xc e p t fo r
re sp o nse s to re q ue sts fro m the LAN. Ho we ve r, so me inc o ming tra ffic fro m the Inte rne t c a n
b e a c c e p te d b y se tting up
Incoming IP Filtering
rule s.
5.5.1 Configuring an Outgoing IP Filtering Rule
1.
Clic k the
Security
hyp e rlink o n the
le ft sid e o f the b ro wse r to se le c t
IP
Filtering
a nd the n
Outgoing
. The n
the
Outgoing IP Filtering Setup
p a g e
sho ws up .
2.
To c re a te a ne w o utg o ing IP filte r,
c lic k
Add
. The
Add IP Filter-
Outgoing
p a g e is d isp la ye d . Ke y in
the fo llo wing p a ra me te rs:
Filte r Name :
Ke y in the na me o f the filte r rule .
Protoc ol:
Se le c t the IP p ro to c o l to b lo c k.
Sourc e Addre ss/ Mask:
Ente r the IP a d d re ss o f the PC o n the
LAN to b lo c k.
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