D-Link DWS-4026 [275/741] Dynamic arp inspection statistics

ConfiguringDynamicARPInspection

D-Link UnifiedWiredandWirelessAccessSystem

November2011 Page275

D‐LinkUWSUserManual

DynamicARPInspectionStatistics

UsetheDynamicARPInspection(DAI)StatisticspagetodisplaythestatisticsperVLAN.

TodisplaytheDAIStatisticspage,clickLAN>Monitoring>DynamicARPInspectionStatisticsinthenavigation

tree.

Figure177:DynamicARPInspectionStatistics

•ClickRefreshtorefreshthepagewiththemostcurrentdatafromthes

witch.

Table158:DynamicARPInspectionStatistics

Field Description

VLANID SelecttheDAI‐enabledVLANIDforwhichtodisplaystatistics.

DHCPDrops ThenumberofARPpacketsthatweredroppedbyDAIbecausetherewasnomatching

DHCPsnoopingbindingentryfound.

ACLDrops ThenumberofARPpacketsthatweredroppedbyDAIbecausetherewasnomatchingARP

LrulefoundforthisVLANandthestaticflagissetonthisVLAN.

DHCPPermits ThenumberofARPpacketsthatwereforwardedbyDAIbecausetherewasamatching

DHCPsnoopingbindingentryfound.

ACLPermits ThenumberorARPpacketsthatwerepermittedbyDAIbecausetherewasama

tchingARP

ACLrulefoundforthisVLAN.

BadSourceMAC ThenumberofARPpacketsthatweredroppedbyDAIbecausethesenderMACaddressin

theARPpacketdidnotmatchthesourceMACintheEthernetheader.

BadDestMAC ThenumberofARPpacketsthatweredroppedbyDA

IbecausethetargetMACaddressin

theARPreplypacketdidnotmatchthedestinationMACintheEthernetheader.

InvalidIP ThenumberofARPpacketsthatweredr oppedbyDAIbecausethesenderIPaddressinthe

ARPpacketortargetIPaddressintheARPreplypacketisnotv

alid.Notvalidaddresses

include0.0.0.0,255.255.255.255,IPmulticastaddresses,classEaddresses(240.0.0.0/4),

andloopbackaddresses(127.0.0.0/8).

Forwarded ThenumberofvalidARPpacketsforwardedbyDAI.

Dropped ThenumberofnotvalidARPpacketsdroppedbyDAI.