TCP/UDP Services

The TCP/UDP Services page enables TCP or UDP-based services on the device, usually for security reasons.

The device offers the following TCP/UDP services:

  • HTTP-Enabled by factory default

  • HTTPS-Enabled by factory default

  • SNMP-Disabled by factory default

  • Telnet-Disabled by factory default

  • SSH-Disabled by factory default

To configure TCP/UDP services, follow these steps:

Procedure

Step 1

Click Security > TCP/UDP Services.

Step 2

Enable or disable the following TCP/UDP services on the displayed services.

  • HTTP Service-Indicates whether the HTTP service is enabled or disabled.

  • HTTPS Service-Indicates whether the HTTPS service is enabled or disabled.

  • SNMP Service-Indicates whether the SNMP service is enabled or disabled.

  • Telnet Service-Indicates whether the Telnet service is enabled or disabled.

  • SSH Service-Indicates whether the SSH server service is enabled or disabled.

Step 3

Click Apply. The services are written to the Running Configuration file.

The TCP Service Table displays the following fields for each service:

  • Service Name-Access method through which the device is offering the TCP service.

  • Type-IP protocol the service uses.

  • Local IP Address-Local IP address through which the device is offering the service.

  • Local Port-Local TCP port through which the device is offering the service.

  • Remote IP Address-IP address of the remote device that is requesting the service.

  • Remote Port-TCP port of the remote device that is requesting the service.

  • State-Status of the service.

    • ESTABLISHED—The socket has an established connection.

    • SYN_SENT—The socket is actively attempting to establish a connection.

    • SYN_RECV—A connection request has been received from the network.

    • FIN_WAIT1—The socket is closed, and the connection is shutting down.

    • FIN_WAIT2—The connection is closed, and the socket is waiting for a shutdown from the remote end.

    • TIME_WAIT—The socket is waiting after close to handle packets still in the network

    • CLOSED—The socket is not being used.

    • CLOSE_WAIT—The remote end has shut down, waiting for the socket to close.

    • LAST_ACK—The remote end has shut down, and the socket is closed. Waiting for acknowledgment

    • LISTEN—The socket is listening for incoming connections.

    • CLOSING—Both sockets are shut down but we still do not have all our data sent.

    • UNKNOWN—The state of the socket is unknown.

The UDP Service table displays the following information:

  • Service Name-Access method through which the device is offering the UDP service.

  • Type-IP protocol the service uses.

  • Local IP Address-Local IP address through which the device is offering the service.

  • Local Port-Local UDP port through which the device is offering the service.