D-Link DES-3018 manual CPU Interface Filtering State Settings, CPU Interface Filtering Table

Models: DES-3018

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DES-3010F/DES-3010FL/DES-3010G/DES-3016/DES-3018/DES-3026 Fast Ethernet Switch Manual

Section 9

CPU Interface Filtering

CPU Interface Filtering State

CPU Interface Filtering Table

CPU Interface Filtering

Due to needed extra switch security, the DES-3000 switch series incorporates CPU Interface filtering. This added feature increases the running security of the Switch by enabling the user to create a list of access rules for packets destined for the Switch’s CPU interface. CPU interface filtering examines Ethernet, IP and Packet Content Mask packet headers destined for the CPU and will either forward them or filter them, based on the user’s implementation. As an added feature for the CPU Filtering, the DES-3000 switch series allows the CPU filtering mechanism to be enabled or disabled globally, permitting the user to create various lists of rules without immediately enabling them.

Creating an access profile for the CPU is divided into two basic parts. The first is to specify which part or parts of a frame the Switch will examine, such as the MAC source address or the IP destination address. The second part is entering the criteria the Switch will use to determine what to do with the frame. The entire process is described below.

CPU Interface Filtering State Settings

In the following window, the user may globally enable or disable the CPU Interface Filtering mechanism by using the pull-down menu to change the running state. Choose Enabled to enable CPU packets to be scrutinized by the Switch and Disabled to disallow this scrutiny. To access this window, click CPU

Interface Filtering > CPU Interface Filtering State

Figure 9- 1. CPU Interface Filtering State Settings window

CPU Interface Filtering Table

The CPU Interface Filtering Table displays the CPU Access Profile Table entries created on the Switch. To view the configurations for an individual entry, click the hyperlinked Profile ID number. To view this table click, CPU Interface Filtering > CPU Interface Filtering Table

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D-Link DES-3018 manual CPU Interface Filtering State Settings, CPU Interface Filtering Table