Table 179: Dynamic ARP Inspection Statistics
Field
Description
VLAN ID
The DAI-enabled VLAN associated with the rest of the information in the row. When DAI is
enabled on a VLAN, DAI is enabled on all interfaces that are members of that VLAN.
DHCP Drops
The number of ARP packets that have been dropped by DAI because no matching
snooping binding entry was found in the DHCP snooping database.
ACL Drops
The number of ARP packets that have been dropped by DAI because the sender IP address
and sender MAC address in the ARP packet did not match any rules in the ARP
associated with this VLAN. The static flag on this VLAN is enabled, which means ARP packets
that fail to match an ARP ACL rule are dropped immediately and are not checked against the
DHCP snooping database for further validation.
DHCP Permits
The number of ARP packets that were forwarded by DAI because a matching DHCP snooping
binding entry was found in the DHCP snooping database.
ACL Permits
The number of ARP packets that were forwarded by DAI because the sender IP address and
sender MAC address in the ARP packet matched a rule in the ARP ACL associated with this
VLAN.
Bad Source MAC
The number of ARP packets that were dropped by DAI because the sender MAC address in
ARP packet did not match the source MAC address in the Ethernet header.
Bad Dest MAC
The number of ARP packets that were dropped by DAI because the target MAC address in the
ARP reply packet did not match the destination MAC address in the Ethernet header.
Invalid IP
The number of ARP packets that were dropped by DAI because the sender IP address in the
ARP packet or target IP address in the ARP reply packet was invalid. The following IP
addresses are considered invalid:
•
0.0.0.0
•
255.255.255.255
•
All IP multicast addresses
•
All class E addresses (240.0.0.0/4)
•
Loopback addresses (in the range 127.0.0.0/8)
Forwarded
The total number of valid ARP packets forwarded by DAI.
Dropped
The total number of invalid ARP packets dropped by DAI.
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GARP Configuration
Use this page to set the administrative mode for the features that use the Generic Attribute Registration
Protocol (GARP), including GARP VLAN Registration Protocol (GVRP) and GARP Multicast Registration
Protocol (GMRP). GARP is a general-purpose protocol that registers any network connectivity or
membership-style information. GARP defines a set of switches interested in a given network attribute,
such as VLAN ID or multicast address.
GARP Switch Configuration
To access the GARP Switch Configuration page, click
Switching
>
GARP
>
Switch
in the navigation
menu.
Configuring Switching Information
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