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DES-3500 Series Layer 2 Stackable Fast Ethernet Managed Switch User Manual
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• Ethernet instructs the Switch to examine the layer 2 part of each packet header.
• IP instructs the Switch to examine the IP address in each frame's header.
• Packet Content Mask instructs the Switch to examine the packet header.
Offset
This field will instruct the Switch to mask the packet header beginning with the offset value
specified:
• value (0-15) - Enter a value in hex form to mask the packet from the beginning of the
packet to the 15th byte.
• value (16-31) - Enter a value in hex form to mask the packet from byte 16 to byte 31.
• value (32-47) - Enter a value in hex form to mask the packet from byte 32 to byte 47.
• value (48-63) - Enter a value in hex form to mask the packet from byte 48 to byte 63.
• value (64-79) - Enter a value in hex form to mask the packet from byte 64 to byte 79.
To view the settings of a previously correctly configured rule, click in the Access Rule Table to view the following screen:
Figure 6- 98. CPU Interface Filtering Rule Display for IP
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