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Changing the Firewall Settings in the Technicolor CGA4131 Administrative Portal

Solution

The Technicolor CGA4131 and Gateway has an integrated firewall that protects your network from internet attacks. The integrated firewall has the following predefined levels that you can select depending on your protection needs.

  • HIgh: Inbound and outbound traffic is restricted
  • Medium: Select inbound traffic is restricted
  • Low: Select inbound traffic is restricted and there are no restrictions on outbound traffic
  • Off: Inbound and outbound traffic is not restricted

    Important: The default firewall setting is Off. This means that all inbound and outbound traffic passing through the Gateway, is not restricted.


The following table provides information on inbound and outbound traffic restrictions based on the firewall level.

Firewall Level Inbound Restrictions Outbound Restrictions
High
  • All unsolicited inbound traffic is blocked.
  • Intrusion Detection is enabled.

All traffic except the following are restricted.

  • HTTP and HTTPS (TCP ports 80 and 443)
  • DNS (TCP/UDP port 53)
  • NTP (UDP ports 119 and 123)
  • Email (TCP ports 25, 110, 143, 465, 587, 993, and 995)
  • VPN (GRE, UDP port 500, TCP port 1723)
  • iTunes (TCP port 3689)
Medium

Inbound traffic is blocked for the following services:

  • IDENT protocol (TCP port 113)
  • ICMP request
  • Peer-to-Peer applications
  • Kazaa (TCP/UDP port 1214)
  • BitTorrent (TCP ports ports 6881-6999)
  • Gnutella (TCP/UDP port 6346)
  • Vuze (TCP ports 49152-65534)

    Note: Intrusion Detection is enabled and all other inbound traffic is allowed. Unsolicited inbound traffic is not forwarded to devices on a home network, unless it matches a port forwarding/triggering rule or a DMZ host has been configured.
  • There are no restrictions.
  • Outbound connections are allowed regardless of the service or ports being used for the connection.
Low Inbound traffic is blocked for IDENT protocol (TCP port 113).

Note: Intrusion Detection is enabled and all other inbound traffic is allowed. Unsolicited inbound traffic is not forwarded to devices on a home network, unless it matches a port forwarding/triggering rule or a DMZ host has been configured.
  • There are no restrictions.
  • Outbound connections are allowed regardless of the service or ports being used for the connection.
Off
  • There are no restrictions.
  • This can be enabled through port forward/port trigger/ DMZ rule.
 The firewall configuration is disabled.
1

Open a web browser and enter http://192.168.0.1.

2

Enter your username and password.

Note: If this is your first time accessing the administrative portal, then you will need to leave the username and password fields blank.

image of the administrative portal login page

3

Click the Security tab.

  1. Click the Firewall sub-tab.
  2. From the Firewall drop-down menu, select the desired level.

    image of the firewall selection option in the admin portal

  3. Click Save.

    Note: For assistance on any additional Firewall settings, contact Cox Business Complete Care.
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