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DAS-3626 VDSL2 Switch User Manual
The following parameters can be set, for
Packet Content
:
Parameter Description
Chunk
Allows users to examine up to 4 specified offset_chunks within a packet at one time and specifies
the frame content offset and mask. There are 4 chunk offsets and masks that can be configured. A
chunk mask presents 4 bytes. 4 offset_chunks can be selected from a possible 32 predefined
offset_chunks as described below:
offset_chunk_1,
offset_chunk_2,
offset_chunk_3,
offset_chunk_4.
chunk0 chunk1 chunk2 ……
chunk29 chunk30 chunk31
B126,
B127,
B0,
B1
B2,
B3,
B4,
B5
B6,
B7,
B8,
B9
……
B114,
B115,
B116,
B117
B118,
B119,
B120,
B121
B122,
B123,
B124,
B125
Example:
offset_chunk_1 0 0xffffffff will match packet byte offset 126,127,0,1
offset_chunk_1 0 0xffff will match packet byte offset,0,1
Note: Only one packet_content_mask profile can be created.
With this advanced unique Packet Content Mask (also known as Packet Content Access Control
List - ACL), the D-Link switch family can effectively mitigate some network attacks like the
common ARP Spoofing attack that is wide spread today. This is why the Packet Content ACL is
able to inspect any specified content of a packet in different protocol layers.
Click
Apply
to implement changes made.
Click Create to view the new Access Profile List entry in the
Access Profile List
table shown below. To add another
Access Profile click
Add ACL Profile
. To delete a profile click the corresponding
Delete
button, to view the specific
configurations for an entry click the
Show Details
button. To add a rule to the Access Profile entry, click the
Add/View
Rules
button.
Figure 119. Access Profile List (Packet Content)
To view the configurations for previously configured entry click on the corresponding
Show Details
Button which will
display the following window.
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