Firewall Protection
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ProSafe Wireless-N 8-Port Gigabit VPN Firewall FVS318N
•Host 3. MAC address (00:01:02:03:04:07) and IP address (192.168.10.12)
There are three possible scenarios in relation to the addresses in the IP/MAC Bindings table:
•Host 1 has not changed its IP and MAC addresses. A packet coming from Host 1 has IP
and MAC addresses that match those in the IP/MAC Bindings table.
•Host 2 has changed its MAC address to 00:01:02:03:04:09. The packet has an IP
address that matches the IP address in the IP/MAC Bindings table but a MAC address
that does not match the MAC address in the IP/MAC Bindings table.
•Host 3 has changed its IP address to 192.168.10.15. The packet has a MAC address that
matches the MAC address in the IP/MAC Bindings table but an IP address that does not
match the IP address in the IP/MAC Bindings table.
In this example, the wireless VPN firewall blocks the traffic coming from Host 2 and Host 3,
but allows the traffic coming from Host 1 to any external network. The total count of dropped
packets is displayed.
IPv4/MAC Bindings
To set up a binding between a MAC address and an IPv4 address:
1. Select Security > Address Filter > IP/MAC Binding. In the upper right of the screen,
the IPv4 radio button is selected by default. The IP/MAC Binding screen displays the
IPv4 settings. (The following figure shows a binding in the IP/MAC Binding table as an
example.)
Figure 97.