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Cisco Ise 14 User Guide

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    							icmp echo
ToconfiguretheInternetControlMessageProtocol(ICMP)echoresponses,usetheicmpechocommandin
configurationmode.
icmpecho{off|on}
Syntax DescriptionConfiguresICMPechoresponse.echo
DisablesICMPechoresponseoff
EnablesICMPechoresponse.on
Command DefaultThesystembehavesasiftheICMPechoresponseison(enabled).
Command ModesConfiguration(config)#
Usage GuidelinesUsethisicmpechototurnonorturnoffICMPechoresponse.
Example
ise/admin(config)#icmpechooffise/admin(config)#
Related CommandsDescriptionCommand
showicmp-status
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icmp echo
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    							interface
Toconfigureaninterfacetypeandentertheinterfaceconfigurationmode,usetheinterfacecommandin
configurationmode.Thiscommanddoesnothaveanoform.
VMwarevirtualmachinemayhaveanumberofinterfacesavailablethatdependsonhowmanynetwork
interfaces(NIC)areaddedtothevirtualmachine.
interfaceGigabitEthernet{0|1|2|3}
Note
Syntax DescriptionConfigurestheGigabitEthernetinterface.GigabitEthernet
NumberoftheGigabitEthernetporttoconfigure.0-3
AfteryouentertheGigabitEthernetportnumberintheinterfacecommand,youenterthe
config-GigabitEthernetconfigurationsubmode(seethefollowingSyntaxDescription).
Note
Syntax DescriptionEXECcommand.AllowsyoutoperformanyEXECcommandsin
thismode.
do
Exitstheconfig-GigabitEthernetsubmodeandreturnsyoutoEXEC
mode.
end
Exitstheconfig-GigabitEthernetconfigurationsubmode.exit
SetstheIPaddressandnetmaskfortheGigabitEthernetinterface.ip
ConfiguresIPv6autoconfigurationaddressandIPv6addressfrom
DHCPv6server.
ipv6
Negatesthecommandinthismode.Twokeywordsareavailable:
•ip—SetstheIPaddressandnetmaskfortheinterface.
•ipv6—SetstheIPv6addressfortheinterface.
•shutdown—Shutsdowntheinterface.
no
Shutsdowntheinterface.shutdown
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    							Command DefaultNodefaultbehaviororvalues.
Command ModesInterfaceconfiguration(config-GigabitEthernet)#
Usage GuidelinesYoucanusetheinterfacecommandtoconfiguretheinterfacestosupportvariousrequirements.
Example
ise/admin(config)#interfaceGigabitEthernet0ise/admin(config-GigabitEthernet)#
Related CommandsDescriptionCommand
do
ipaddress
ipv6addressautoconfig
ipv6addressdhcp
shutdown
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    							ipv6 address autoconfig
ToenableIPv6statelessautoconfiguration,usetheinterfaceGigabitEthernet0commandinconfiguration
mode.Thiscommanddoesnothaveanoform.
IPv6addressautoconfigurationisenabledbydefaultinLinux.CiscoADE2.0showstheIPv6address
autoconfigurationintherunningconfigurationforanyinterfacethatisenabled.
interfaceGigabitEthernet{0|1|2|3}
Syntax DescriptionConfigurestheGigabitEthernetinterface.GigabitEthernet
NumberoftheGigabitEthernetporttoconfigure.0-3
Command DefaultNodefaultbehaviororvalues.
Command ModesInterfaceconfiguration(config-GigabitEthernet)#
Usage GuidelinesIPv6statelessautoconfigurationhasthesecuritydownfallofhavingpredictableIPaddresses.Thisdownfall
isresolvedwithprivacyextensions.Youcanverifythattheprivacyextensionsfeatureisenabledbyusing
theshowinterfacecommand.
Example
ise/admin(config-GigabitEthernet)#ipv6addressautoconfigise/admin(config)#
Related CommandsDescriptionCommand
showinterface
ipaddress
shutdown
ipv6addressdhcp
showrunning-config
ConfiguringIPv6AutoConfiguration
VerifyingthePrivacyExtensionsFeature
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ipv6 address autoconfig
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    							Configuring IPv6 Auto Configuration
ToenableIPv6statelessautoconfiguration,usetheinterfaceGigabitEthernet0commandinInterface
configurationmode:
ise/admin#configureterminalEnterconfigurationcommands,oneperline.EndwithCNTL/Z.ise/admin(config)#interfaceGigabitEthernet0ise/admin(config)#(config-GigabitEthernet)#ipv6addressautoconfigise/admin(config)#(config-GigabitEthernet)#endise/admin#
WhenIPv6autoconfigurationisenabled,therunningconfigurationshowstheinterfacesettingssimilartothe
following:
!interfaceGigabitEthernet0ipaddress172.23.90.116255.255.255.0ipv6addressautoconfig!
YoucanusetheshowinterfaceGigabitEthernet0commandtodisplaytheinterfacesettings.Intheexample
below,youcanseethattheinterfacehasthreeIPv6addresses.Thefirstaddress(startingwith3ffe)isobtained
usingthestatelessautoconfiguration.
Forthestatelessautoconfigurationtowork,youmusthaveIPv6routeadvertisementenabledonthatsubnet.
Thenextaddress(startingwithfe80)isalink-localaddressthatdoesnothaveanyscopeoutsidethehost.
YouwillalwaysseealinklocaladdressregardlessoftheIPv6autoconfigurationorDHCPv6configuration.
Thelastaddress(startingwith2001)isobtainedfromaIPv6DHCPserver.
ise/admin#showinterfaceGigabitEthernet0eth0Linkencap:EthernetHWaddr00:0C:29:AF:DA:05inetaddr:172.23.90.116Bcast:172.23.90.255Mask:255.255.255.0inet6addr:3ffe:302:11:2:20c:29ff:feaf:da05/64Scope:Globalinet6addr:fe80::20c:29ff:feaf:da05/64Scope:Linkinet6addr:2001:558:ff10:870:8000:29ff:fe36:200/64Scope:GlobalUPBROADCASTRUNNINGMULTICASTMTU:1500Metric:1RXpackets:77848errors:0dropped:0overruns:0frame:0TXpackets:23131errors:0dropped:0overruns:0carrier:0collisions:0txqueuelen:1000RXbytes:10699801(10.2MiB)TXbytes:3448374(3.2MiB)Interrupt:59Baseaddress:0x2000ise/admin#
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Configuring IPv6 Auto Configuration
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    							Verifying the Privacy Extensions Feature
Toverifythattheprivacyextensionsfeatureisenabled,youcanusetheshowinterfaceGigabitEthernet0
command.Youcanseetwoautoconfigurationaddresses:oneaddressiswithouttheprivacyextensions,and
theotheriswiththeprivacyextensions.
Intheexamplebelow,theMACis3ffe:302:11:2:20c:29ff:feaf:da05/64andthenon-RFC3041addresscontains
theMAC,andtheprivacy-extensionaddressis302:11:2:9d65:e608:59a9:d4b9/64.
Theoutputappearssimilartothefollowing:
ise/admin#showinterfaceGigabitEthernet0eth0Linkencap:EthernetHWaddr00:0C:29:AF:DA:05inetaddr:172.23.90.116Bcast:172.23.90.255Mask:255.255.255.0inet6addr:3ffe:302:11:2:9d65:e608:59a9:d4b9/64Scope:Globalinet6addr:3ffe:302:11:2:20c:29ff:feaf:da05/64Scope:Globalinet6addr:fe80::20c:29ff:feaf:da05/64Scope:LinkUPBROADCASTRUNNINGMULTICASTMTU:1500Metric:1RXpackets:60606errors:0dropped:0overruns:0frame:0TXpackets:2771errors:0dropped:0overruns:0carrier:0collisions:0txqueuelen:1000RXbytes:9430102(8.9MiB)TXbytes:466204(455.2KiB)Interrupt:59Baseaddress:0x2000ise/admin#
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Verifying the Privacy Extensions Feature
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    							ipv6 address dhcp
ToacquireanIPv6addressonaninterfacefromtheDynamicHostConfigurationProtocolforIPv6(DHCPv6)
server,usetheipv6addressdhcpcommandintheinterfaceconfigurationmode.Toremovetheaddressfrom
theinterface,usethenoformofthiscommand.
ipv6addressdhcp
Command DefaultNodefaultbehaviororvalues.
Command ModesInterfaceconfiguration(config-GigabitEthernet)#
Usage Guidelines
Example
ise/admin#configureterminalEnterconfigurationcommands,oneperline.EndwithCNTL/Z.ise/admin(config)#interfaceGigabitEthernet1ise/admin(config-GigabitEthernet)#ipv6addressdhcpise/admin(config-GigabitEthernet)#endise/admin#
WhenIPv6DHCPisenabled,therunningconfigurationshowstheinterfacesettingssimilartothefollowing:
!interfaceGigabitEthernet1ipv6addressdhcpipv6enable!
TheIPv6statelessautoconfigurationandIPv6addressDHCParenotmutuallyexclusive.Itispossibleto
havebothIPv6statelessautoconfigurationandIPv6addressDHCPonthesameinterface.
YoucanusetheshowinterfacecommandtodisplaywhatIPv6addressesareinuseforaparticular
interface.
Note
WhenboththeIPv6statelessautoconfigurationandIPv6addressDHCPareenabled,therunningconfiguration
showstheinterfacesettingssimilartothefollowing:
!interfaceGigabitEthernet1ipv6addressdhcpipv6addressautoconfigipv6enable!
Related CommandsDescriptionCommand
showinterface
ipaddress
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ipv6 address dhcp
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    							DescriptionCommand
shutdown
ipv6addressautoconfig
showrunning-config
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ipv6 address dhcp
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    							ip address
TosettheIPaddressandnetmaskfortheGigabitEthernetinterface,usetheipaddresscommandininterface
configurationmode.
ipaddressip-addressnetworkmask
ToremoveanIPaddressordisableIPprocessing,usethenoformofthiscommand.
noipaddress
YoucanconfigurethesameIPaddressonmultipleinterfaces.Youmightwanttodothistolimitthe
configurationstepsthatareneededtoswitchfromusingoneinterfacetoanother.
Note
Syntax DescriptionIPv4address.ip-address
MaskoftheassociatedIPsubnet.networkmask
IfyouhavetheprimaryAdministrationnode(PAN)auto-failoverconfigurationenabled,disableitbeforeyou
settheIPaddress.YoucanenablethePANauto-failoverconfigurationaftertheIPaddressisconfigured.
Command DefaultEnabled.
Command ModesInterfaceconfiguration(config-GigabitEthernet)#
Usage Guidelines
If'Ctrl-C'isissuedduringtheCLIconfigurationchangeof'ipaddress'command,incaseofIPaddress
changethesystemmayendupinastatewheresomeapplicationcomponentshavetheoldIPaddress,and
somecomponentsusethenewIPaddress.
ThiswillbringtheCiscoISEnodeintoanon-workingstate.Theworkaroundforthisistoissueanother
'ipaddress'configurationCLItosettheIPaddresstothedesiredvalue.
Note
Requiresexactlyoneaddressandonenetmask;otherwise,anerroroccurs.
IfyouhavethePANauto-failoverconfigurationenabledinyourdeployment,thefollowingmessageappears:
PANAutoFailoverisenabled,thisoperationisnotallowed!PleasedisablePANAuto-failoverfirst.
Example
ise/admin(config)#interfaceGigabitEthernet1ise/admin(config-GigabitEthernet)#ipaddress209.165.200.227255.255.255.224ChangingthehostnameorIPmayresultinundesiredsideeffects,suchasinstalledapplication(s)beingrestarted.
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    							........ToverifythatISEprocessesarerunning,usethe'showapplicationstatusise'command.ise/admin(config-GigabitEthernet)#
Related CommandsDescriptionCommand
shutdown
ipdefault-gateway
interface
showinterface
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