6.3

Table Of Contents
Reference Guide
72 VMware, Inc.
ImproperconfigurationoftheNICsusedfortheVMwareChannelconnection
ISPproblemsinaWANenvironment
Resolution
WhenaNICproblemisencountered,thefollowingshouldbechecked.
VerifythatVMwareChannelNICdriversarethecorrectandlatestversions.Knownissuesareidentified
withHP/CompaqProLiantNC67xx/NC77xxGigabitEthernetNICs.CheckotherNICtypes.See
knowledgebasearticle1008383(vCSHBRef116)VMwarevCenterServerHeartbeatandGigabitEthernet
NICdrivers.(NC77XX).
VerifyhubsandEthernetswitchesareoperatingproperly.Identifyandreplaceanydefectivecomponents.
TestfordefectiveEthernetpatchorcrossovercablesandreplaceifdefective.
CorrectlyconfiguretheNICsusedfortheVMwareChannelconnection.
CheckthephysicallinkforISPproblems.
Firewall Connection
InaLANorWA Ndeployment,theVMwareChannelcanbeconnectedthroughoneormoreInternetfirewalls.
Becausefirewallsblockunauthorizednetworktraffic,configurefirewallsontherouteoftheVMwareChannel
toallowchanneltraffic.
Symptoms
TheVMwareChannelcannotconnect,orcontinuouslyconnectsanddisconnects.
Causes
InaWANdeployment,port57348oranyotherportconfiguredfortheVMwareChannelisclosedononeor
morefirewallsontheroutebetweentheVMwareChannelNIConthePrimaryserveranditscounterparton
theSecondaryserver.
Resolution
Openport57348andanyotherportconfiguredfortheVMwareChannelonallfirewallsontheroutebetween
theVMwareChannelNIConthePrimaryserveranditscounterpartontheSecondaryserver.
Incorrect VMware Channel Configuration
Anincorrectlyconfiguredchannelconnectioncanpreventpropercommunicationandreplication.
Symptoms
Thefollowingproblemsareexperienced:
IPconflictsoccurononeoftheVMwareChannelIPaddresses
TheVMwareChanneldoesnotconnect,orconnectsanddisconnects
Causes
Thelistbelowprovidesthemostcommonmisconfigurations.
IdenticalIPaddressesateachendoftheVMw areChannel
IPaddressesindifferentsubnetswithoutstaticroutingateachendoftheVMwareChannel
VMwareChannelNICconfiguredforDHCPwhenaDHCPserverisnotavailable