Allied-telesis AT-S62 Manual de usuario descargar pdf (Pagina 225)

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AT-S62 Menus Interface User’s Guide

Section II: Advanced Operations 225

You do not need to enter a source IP mask if you are filtering on the IP

address of a specific end node. A mask is required, however, when

filtering on a subnet. A binary “1” indicates the switch should filter on the

corresponding bit of the IP address, while a “0” indicates that it should

not. For example, the Class C subnet address 149.11.11.0 would have the

mask “255.255.255.0”.

Observe this guideline when using these criteria:

❑ The Protocol variable must be left blank or set to IP.

Destination IP Addresses (Layer 3)

Destination IP Mask (Layer 3)

You can also define a traffic flow based on the destination IP address of a

subnet or a specific end node.

You do not need to enter a destination IP mask if you are filtering on the

IP address of a specific end node. A mask is required, however, when

filtering on a subnet. As with a source IP mask, a binary “1” indicates the

switch should filter on the corresponding bit of the IP address, while a

“0” indicates that it should not. For example, the Class C subnet address

149.11.11.0 would have the mask “255.255.255.0”.

Observe this guideline when using these criteria:

❑ 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:

❑ The Protocol variable must be left blank or set to IP.

❑ The IP Protocol variable must be left blank or set to TCP.

❑ 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:

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