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13.Click
OK
to use the changes to the running configuration and close the dialog.
14.Click
Cancel
to close the dialog without committing updates to the running configuration.
6.4.12 Configuring Layer 2 Firewall
To review Layer 2 firewall rules:
1. Select
Security
2. Click the
Configuration
3. Click the
L2
tab.
4. The
L2
tab contains the following information:
Interface Name
ARP Rate
DHCP Trust
ARP Trust
>
Wireless Firewall
from the main tree menu.
tab.
Displays the interface associated with the Layer 2 firewall. Available Layer 2 interfaces are ge 1-
8 and up1.
Displays the Address Resolution Protocol (ARP) rate. Rates can be between 1 and 1000000
Displays the DHCP trust status for the selected L2 interface. Any DHCP packets from a DHCP
server connected to the selected interface is considered trusted. These DHCP packets are used to
update the DHCP Snoop Table to prevent IP spoof attacks. By default all physical interfaces are
DHCP trusted. Onboard DHCP server is also trusted as the switch's local port is always trusted.
When DHCP trust is enabled, a green checkmark is displayed. when disabled, a red 'X' is
displayed.
Displays the ARP trust status for the selected L2 interface. Trusted ARP packets are also used to
update the DHCP Snoop Table to prevent IP spoof and arp-cache-poisoning attacks. By default,
none of the physical or aggregate interfaces are ARP trusted.
Switch Security 6 - 37
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Troubleshooting
