User's Manual Part 3

Using Diagnostic Tools
Chapter 14: Maintenance 417
Note: This element can be prepended by tcp or udp. For information, see tcp on
page 417 and udp on page 418.
PARAMETERS
port
Integer. The port to which the packet is sent.
EXAMPLE
The following filter string saves packets that originated from port 80:
src port 80
tcp
PURPOSE
The tcp element captures all TCP packets. This element can be prepended to port-
related elements.
Note: When not prepended to other elements, the
tcp element is the equivalent of
ip proto tcp.
SYNTAX
tcp
tcp element
PARAMETERS
element
String. A port-related filter string element that should be
restricted to saving only TCP packets. This can be the
following:
•
dst port - Capture all TCP packets destined
for a specific port.
• port - Captures all TCP packets originating
from or destined for a specific port.
• src port - Capture all TCP packets originating
from a specific port.