Port triggering has been configured on a wireless router. Port 25 has been defined as the trigger port and port 113 as an open port. What effect does this have on network traffic?

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  • Post last modified:March 22, 2021
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Last Updated on March 22, 2021 by Admin

Port triggering has been configured on a wireless router. Port 25 has been defined as the trigger port and port 113 as an open port. What effect does this have on network traffic?

  • Any traffic that comes into port 25 allows outgoing port 113 to be used.
  • All traffic that is sent into port 25 to the internal network will also be allowed to use port 113.
  • Any traffic that is using port 25 going out of the internal network will also be allowed to transmit out port 113.
  • All traffic that is sent out port 25 will open port 113 to allow inbound traffic into the internal network through port 113.
    Explanation:

    Port triggering is used to allow inbound traffic through the firewall based on outbound traffic. The trigger occurs when an application makes use of a specific port on the internal network. An external port on the firewall is then opened. This allows for temporary passage of traffic through inbound ports to a specific device.

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