Name

Destination Port

Synopsis

Identifies the application that this segment is for, as referenced by the 16-bit TCP port number in use by the application on the destination system.

Size

Sixteen bits.

Notes

This field identifies the port number used by the destination application.

Capture Sample

In the capture shown in Figure 7.19, the Destination Port field is set to hexadecimal 04 0d, which is decimal 1037. This is the port number that the HTTP client is using.

The Destination Port Number field
Figure 7.19. The Destination Port Number field
See Also

Source Port

Application addressing with TCP ports

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