Dynamix UM-SB Bedienungsanleitung PDF herunterladen (Seite 136)

Dynamix UM-SB Series User Manual V0.06

135

firewall will take effect if NAT function is enabled. The remote management security is default to

block any WAN side connection to the device. Non-empty legal IP pool in ADMIN will block all

remote management connection except those IPs specified in the pool.

Level two, automatic, enables basic firewall security and all DoS protection.

Level three, advanced, is an advanced level of firewall where user can determine the security

level for special purpose, environment, and applications by configuring the DoS protection and

defining an extra packet filter with higher priority . Note that, an improper filter policy may degrade

the capability of the firewall and/or even block the normal network traffic.

The firewall security level can configure via level command.

Firewall Security Level:

Level

□

Basic

□

Automatic

□

Advanced

Packet filtering function can be configured by pkt_filter command. Move the cursor to pkt_filter

and press enter.

active

Tigger 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.

To enable the drop fragmented packets, you can use drop_frag command.

Function enable:

Packet filtering function

□Disable □Enable

Drop fragmented packet

□Disable □Enable

Add the packet filtering rule via add command.

You can set up maximum 32 numbers packet filtering rules, Anytime you can modify and exchange

their rules by using modify and exchange 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)

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