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Motorola 2200 ユーザーズマニュアル

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Administrator’s Handbook
144
To protect LAN users and their network from these types of attacks, BreakWater offers three levels of 
increasing protection. 
The following tables indicate the 
state of ports associated with session types, both on the WAN side 
and the LAN side of the Gateway.
This table shows how inbound traffic is treated. Inbound means the traffic is coming from the WAN into the 
WAN side of the Gateway. 
This table shows how outbound traffic is treated. Outbound means the traffic is coming from the LAN-side 
computers into the LAN side of the Gateway. 
Gateway: WAN Side
BreakWater Setting >>
ClearSailing
SilentRunning
LANdLocked
Port
   Session Type
--------------Port State-----------------------
20
ftp data
Enabled
Disabled
Disabled
21
ftp control
Enabled
Disabled
Disabled
23
telnet external
Enabled
Disabled
Disabled
23
telnet Motorola Netopia® 
ser ver
Enabled
Disabled
Disabled
80
http external
Enabled
Disabled
Disabled
80
http Motorola Netopia® ser ver Enabled
Disabled
Disabled
67
DHCP client
Enabled
Enabled
Disabled
68
DHCP ser ver
Not Applicable
Not Applicable
Not Applicable
161
snmp
Enabled
Disabled
Disabled
ping (ICMP)
Enabled
Disabled
Disabled
Gateway: LAN Side
BreakWater Setting >>
ClearSailing
SilentRunning
LANdLocked
Port
   Session Type
--------------Port State-----------------------
20
ftp data
Enabled
Enabled
Disabled
21
ftp control
Enabled
Enabled
Disabled
23
telnet external
Enabled
Enabled
Disabled
23
telnet Motorola Netopia® 
ser ver
Enabled
Enabled
Enabled
80
http external
Enabled
Enabled
Disabled
80
http Motorola Netopia® ser ver Enabled
Enabled
Enabled
67
DHCP client
Not Applicable
Not Applicable
Not Applicable
68
DHCP ser ver
Enabled
Enabled
Enabled
161
snmp
Enabled
Enabled
Enabled
ping (ICMP)
Enabled
Enabled
WAN - Disabled
LAN -
Local Address 
Only