Ip-Mac Binding; Ip-Mac Binding Port - D-Link DES-3526 User Manual

xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual

IP-MAC Binding

The IP network layer uses a four-byte address. The Ethernet link layer uses a six-byte MAC address. Binding these two address
types together allows the transmission of data between the layers. The primary purpose of IP-MAC binding is to restrict the access
to a switch to a number of authorized users. Only the authorized client can access the Switch's port by checking the pair of IP-
MAC addresses with the pre-configured database. If an unauthorized user tries to access an IP-MAC binding enabled port, the
system will block the access by dropping its packet. The maximum number of IP-MAC binding entries is dependant on chip
capability (e.g. the ARP table size) and storage size of the device. For DES-3526/3526DC, the maximum number of IP-MAC
Binding entries is 512. The creation of authorized users can be manually configured by CLI or Web. The function is port-based,
meaning a user can enable or disable the function on the individual port.

IP-MAC Binding Port

To enable or disable IP-MAC binding on specific ports, click IP-MAC Binding Port in the IP-MAC Binding folder on the
Configuration Menu to open the IP-MAC Binding Ports Setting window. Select a port or a range of ports with the From and
To fields. Enable or disable the port with the State field. Click Apply to save changes.
Figure 6- 83. IP-MAC Binding Ports window
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