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Web Configuration
4.
Firewall
This page allows you to choose the firewall settings of the Gateway in order to protect the computers within your
home network from malicious attacks from outsiders. In addition you can use this feature to restrict a computer
within your home network from accessing certain Internet traffic by IP address and by logical ports.
3 security levels are proposed:
Minimum
(
default
)
Medium
Maximum
Minimum Level of Security
The minimum level allows all the incoming and outgoing traffic,
except
for:
• Windows Ports:
137, 138, 139.
These ports are used for local networks.
So, the Firewall allows a minimum level of security. Apple products are also supported
Medium Level of Security
This level of security blocks all the incoming traffic and allows all outgoing traffic.
Already established connections are accepted.
Maximum Level of Security
This level blocks all the incoming and outgoing traffic with the following exceptions:
• Connections to the following services
(servers located on the WAN)
are accepted:
• FTP (port 20/21)
• www.(port 80) in TCP
• http (port 443) in TCP
• SMTP (port 25) in TCP and UDP
• POP2 (port 109) in TCP and UDP
• POP3 (port 110) in TCP and UDP
• nntp (port 119) in TCP
All the packets of an already established connection are accepted.
Email for MAC (POP3
on port
995) requires medium or lower security setting.
Administration
Status - Telephony -
Router -
Wireless
eMTA-Settings
Gateway
Router
LAN
WAN
Computer
Firewall
Forward
DMZ
Firewall
: This page allows you to restrict a computer within your home network
from accessing certain internet traffic by IP address and by logical ports.
Security
Minimum
Minimum
Medium (filter input)
Maximum (filter both input and output)
