14 packet filtering – NetComm G.SHDSL 4-port Security Modem Routers NB712 User Manual
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NB712 / NB714 User Guide
107
YML829 Rev1
14.16.14 Packet Filtering
Packet filtering function can be configured by pkt_filter command. Move the cursor to pkt_filter and press enter.
>> active
Trigger packet filtering function
drop_flag
Drop fragment packets
add
Add packet filtering rule
delete
Delete packet filtering rule
modify
Modify packet filtering rule
exchange
Exchange the filtering rule
list
Show packet filtering table
To enable the packet filtering function, you can use active command.
Add the packet filtering rule via add command.
>> protocol
Configure protocol type
Direction Configure direction mode
src_ip
Configure source IP parameter
dest_ip
Configure destination IP parameter
port
Configure port parameter (TCP and UDP only)
tcp_flag
Configure TCP flag (TCP only)
icmp_type Configure ICMP flag (ICMP only)
description Packet filtering rule description
enable
Enable the packet filtering rule
begin
The schedule of beginning time
end
The schedule of ending time
action
Configure action mode