D-Link xStack DES-3800 Series User Manual page 213

Figure 10- 27. CPU Interface Filtering Rule Configuration - Packet Content Mask
To set the CPU Access Rule for Ethernet, adjust the following parameters and click Apply.
Parameters Description
This is the identifier number for this profile set.
Profile ID
Mode Select Permit to specify that the packets that match the access profile are forwarded by the
Switch, according to any additional rule added (see below).
Select Deny to specify that packets that match the access profile are not forwarded by the
Switch and will be filtered.
Access ID Type in a unique identifier number for this access. This value can be set from 1 - 65535.
Type Selected profile based on Ethernet (MAC Address), IP address or Packet Content.
Offset This field will instruct the Switch to mask the packet header beginning with the offset value
specified:
xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch
Ethernet instructs the Switch to examine the layer 2 part of each packet header.
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IP instructs the Switch to examine the IP address in each frame's header.
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Packet Content Mask instructs the Switch to examine the packet header.
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value (0-15) - Enter a value in hex form to mask the packet from the beginning of the
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packet to the 15th byte.
value (16-31) - Enter a value in hex form to mask the packet from byte 16 to byte 31.
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value (32-47) - Enter a value in hex form to mask the packet from byte 32 to byte 47.
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value (48-63) - Enter a value in hex form to mask the packet from byte 48 to byte 63.
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value (64-79) - Enter a value in hex form to mask the packet from byte 64 to byte 79.
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