xStack DGS-3400 Series Layer 2 Gigabit Ethernet Managed Switch 
This screen will aid the user in configuring the Switch to mask packet headers beginning with the offset value specified. The 
following fields are used to configure the Packet Content Mask: 
Parameter                Description 
Profile ID (1-5) 
Type in a unique identifier number for this profile set. This value can be set from 1 - 5. 
Type 
Select profile based on Ethernet (MAC Address), IP address or packet content mask. This will 
change the menu according to the requirements for the type of profile. 
Select Ethernet to instruct the Switch to examine the layer 2 part of each packet header.  
Select IP to instruct the Switch to examine the IP address in each frame's header.  
Select Packet Content Mask to specify a mask to hide the content of 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. 
Click Apply to implement changes made. 
To view the settings of a previously correctly created profile, click 
 in the Access Profile Table to view the following screen: 
 
Figure 9- 25. CPU Interface Filtering Display for Packet Content 
To establish the rule for a previously created CPU Access Profile: 
In the ACL folder, click the CPU Interface Filtering > CPU Interface Filtering Table to open the CPU Interface Filtering 
Table. 
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