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Disabling Attack Detection 81
HomePortal 3801HGV Gateway User Guide Configuring Firewall Settings
Steps
1. Navigate to Settings > Firewall > Advanced Configuration. The Advanced Configuration
page to configure Attack Detection appears.
2. Clear the Excessive Session Detection check box.
When disabled, the firewall does not detect applications on the local network that are
creating excessive sessions to the Internet. This activity is due to a virus infected
computer and on detection, the gateway displays a HURL warning page.
3. Clear the TCP/UDP Port Scan check box.
When disabled, the firewall does not detect UDP and TCP port scans, and communicates
the port scan packets to the computer.
A port scan is a series of messages sent by an external entity attempting to break into a
computer to learn which computer network services associated with UDP and TCP ports
are provided by the computer.
4. Clear the Invalid Source/Destination IP address check box.
When disabled, the firewall does not verify IP addresses for: Broadcast or multicast IP
addresses, TCP destination IP address is not unicast, IP source and destination address
are the same, Invalid IP source received from private/home network.
5. Clear the Packet Flood (SYN/UDP/ICMP/Other) check box.
When disabled, the firewall does not check for SYN, UDP, ICMP, and other types of packet
floods on the local and Internet facing interfaces.
6. Clear the Invalid TCP Flag Attacks (NULL/XMAS/Other) check box.
When disabled, the firewall does not scan inbound and outbound packets for invalid TCP
Flag settings, and communicates the packet that could result in NULL/XMAS/Other type of
attacks.
7. Clear the Invalid ICMP Detection check box.
When disabled, the firewall does not check for invalid ICMP/code types, and
communicates the associated packets to the computer.
8. Clear the Miscellaneous check box.
When disabled, the firewall does not scan any other type of inbound and outbound packets,
other than the ones listed in the Attack Detection section.
9. Click Save. The ports listed in the Attack Detection section are disabled.