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44
This example parameter:
Name
:
enableipfilter02
LAN IP
:
192.168.1.23
WAN IP
:
121.204.201.13
Protocol
:
all
Direction
:
IN/OUT
Interface
:
PPP0
Read picture
4-10-3
,
then click “Submit” to save.
4
、
Explanation and Instruction
After this rule built, Router will start IP address filtering function.According to
running rule “Receive packet matching following rule”, Router forbid all data packet
to go through, but only allow protocol data packets (select “ALL”) from WAN
“121.204.201.13”(select “IN/OUT” direction) to go through PPPO interface (select
PPP0 interface). Usually this rule shields invalid IP address to go through Router,
can reduce data flow, or as bank application, can shield other IP address access to
bank IP address to realize filtering function and reduce data flow.
Picture 4-2-5