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4. ip-mac binding – ICP DAS USA MSM-6226 User Manual

Page 60

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Publication date:March., 2011

Revision A1

48

3-4. 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 and port number 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.


Function name:


IP MAC Binding Configuration

Function description:

The switch has client and server two classes of IP-MAC Binding table. The

maximum number of IP-MAC binding client table is 512 entries. The maximum
number of IP-MAC Binding server table is 64 entries. The creation of authorized
users can be manually. The function is global, this means a user can enable or
disable the function for all ports on the switch.

Parameters description:

State:

mode: It is used for the activation or de-activation of IP-MAC Binding.
Default is disable.

Binding Port: It are the ports which signs for IP-MAC Binding.

Binding List:

The maximum number of IP-MAC binding client table is 512 entries. The
maximum number of IP-MAC Binding server table is 64 entries.

Name:

A name is composed of any letter (A-Z, a-z) and digit (0-9) with maximal
8 characters.

Fig. 3-11