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IP / MAC Binding
IP/MAC Binding allows you to bind IP to MAC address and vice-versa. Some machines are configured with static addresses. To prevent user from changing static IP addresses, the router need to enable IP/MAC Binding. If router see packets with matching IP address but inconsistent MAC address or vice-versa, it will drop such packets. If user have enabled logging option for IP/MAC Binding, such packets will be logged before dropping. The router display the total count of dropped packets which violated either IP to MAC Binding or MAC to IP Binding.
Example: If three computers are on the LAN with the following setup:
Host1 -- MAC address(00:01:02:03:04:05) & IP adress(192.168.10.10)
Host2 -- MAC address(00:01:02:03:04:06) & IP adress(192.168.10.11)
Host3 -- MAC address(00:01:02:03:04:07) & IP adress(192.168.10.12)
All the above host entries are added in IP/MAC Binding table. The scenario for the above hosts are as such:
Host1 -- Matching IP & MAC address in IP/MAC Table.
Host2 -- Matching IP but inconsistent MAC address in IP/MAC Table.
Host3 -- Matching MAC but inconsistent IP address in IP/MAC Table.
The router will block the traffic coming from Host2 & Host3 but allow the traffic coming from Host1 to any external network. Total count of dropped packets will be displayed.
IP/MAC Bind Table
This table lists the currently defined IP/MAC Bind rules:
Name: Displays the user-defined name for this rule.
MAC Addresses: Displays the MAC Addresses for this rule.
IP Addresses: Displays the IP Addresses for this rule.
Log Dropped Packets: Displays logging option for this rule.

To remove an entry from the table, select the IP/MAC Bind entry and click Delete. To edit an entry, click Edit adjacent to the entry.
Add IP/MAC Bind Rule
Name: Specify easily identifiable name for this rule.
MAC Address: Specify the MAC Address for this rule.
IP Addresses: Specify the IP Address for this rule.
Log Dropped Packets: Specify Logging option for this rule.
Edit IP/MAC Bind Rule
The following fields of an existing IP/MAC Bind rule can be modified:
MAC Address: Specify the MAC Address for this rule.
IP Addresses: Specify the IP Address for this rule.
Log Dropped Packets: Specify Logging option for this rule.
Click Apply to save the settings when you are done changing them.
Click Reset to discard any changes and revert to the previous settings.
 

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