User Manual

Manage Device Security
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M4200 and M4300 Series ProSAFE Managed Switches Web Management User Manual
6. To refresh the page with the latest information on the switch, click the Update button.
7. To clear the DAI statistics, click the Clear button.
The following table describes the nonconfigurable information displayed on the page.
Table 209. DAI Statistics
Field Description
VLAN The enabled VLAN ID for which statistics are to be displayed.
DHCP Drops Number of ARP packets that were dropped by DAI because there is no
matching DHCP snooping binding entry found.
DHCP Permits Number of ARP packets that were forwarded by DAI because there is a
matching DHCP snooping binding entry found.
ACL Drops Number of ARP packets that were dropped by DAI because there is no
matching ARP ACL rule found for this VLAN and the static flag is set on
this VLAN.
ACL Permits Number of ARP packets that were permitted by DAI because there is a
matching ARP ACL rule found for this VLAN.
Bad Source MAC Number of ARP packets that were dropped by DAI because the sender
MAC address in ARP packets didn't match the source MAC in Ethernet
header.
Bad Dest MAC Number of ARP packets that were dropped by DAI because the target
MAC address in ARP reply packets didn't match the destination MAC in
Ethernet header.
Invalid IP Number of ARP packets that were dropped by DAI because the sender
IP address in ARP packets or the target IP address in ARP reply
packets is invalid. Invalid addresses include 0.0.0.0, 255.255.255.255,
IP multicast addresses, class E addresses (240.0.0.0/4), loopback
addresses (127.0.0.0/8).
Forwarded Number of valid ARP packets forwarded by DAI.
Dropped Number of invalid ARP packets dropped by DAI.