Allied Telesis AT-S62 - Manual (Page 239)

AT-S62 Management Software Menus Interface User’s Guide
Section II: Advanced Operations 239
Observe this guideline when using these criteria:
ˆ The Protocol variable must be left blank or set to IP.
TCP Source Ports (Layer 4)
TCP Destination Ports (Layer 4)
Traffic flows can be identified by a source and/or destination TCP port
number. A TCP port number is contained within the header of an IP frame.
Observe the following guidelines when using these criteria:
ˆ The Protocol variable must be left blank or set to IP.
ˆ The IP Protocol variable must be left blank or set to TCP.
ˆ A classifier cannot contain criteria for both TCP and UDP ports. You
may specify one in a classifier, but not both.
UDP Source Ports (Layer 4)
UDP Destination Ports (Layer 4)
Traffic flows can be identified by a source and/or destination UDP port
number. A UDP port number is contained within the header of an IP frame.
Observe the following guidelines when using these criteria:
ˆ The Protocol variable must be left blank or set to IP.
ˆ The IP Protocol variable must be left blank or set to UDP.
ˆ A classifier cannot contain criteria for both TCP and UDP ports. You
may specify only one in a classifier.
TCP Flags
A traffic flow can be based on the following TCP flags:
ˆ URG - Urgent
ˆ ACK - Acknowledgement
ˆ RST - Reset
ˆ PSH - Push
ˆ SYN - Synchronization
ˆ FIN - Finish
Observe the following guidelines when using this criterion:
ˆ The Protocol variable must be left blank or set to IP.
ˆ The IP Protocol variable must be left blank or set to TCP.
ˆ A classifier cannot contain both a TCP flag and a UDP source and/or
destination port.