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34 Cards in this Set
- Front
- Back
EIGRP for IPv6 advertises IPv6 prefixes/lengths, rather than IPv4 subnet/mask information
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EIGRP for IPv6 uses the neighbor’s link-local address as the next-hop IP address; EIGRP forIPv4 has no equivalent concept.
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encapsulates its messages in IPv6 packets, rather than IPv4 packets
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EIGRP for IPv6 does not require neighbors to be in the same IPv6 subnet as a requirement tobecome neighbors.
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IPv4 defaults to use automatic route summarization at the boundaries ofclassfulIPv4 networks
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IPv6 has no concept ofclassful networks, so EIGRP for IPv6 cannot performany automatic summarization.
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EIGRP IPV4 Multicast Update Destination 224.0.0.10 |
EIGRP IPV6 Multicast Upfate Destination FF02::A |
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Configuring EIGRP for IPv6
Step 1. Enable IPv6 routing with the ipv6 unicast-routing global command. |
Configuring EIGRP for IPv6
Step 2. Enable EIGRP using the ipv6 router eigrp {1 – 65535} global configuration command. |
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Configuring EIGRP for IPv6
Step 3. Enable IPv6 on the interface, typically with one of two methods: Configure an IPv6 unicast address on each interface, using the ipv6 address address/prefix-length [eui-64] interface command. |
Configuring EIGRP for IPv6
Or Configure the ipv6 enable command, which enables IPv6 and causes the router to deriveits link-local address |
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Configuring EIGRP for IPv6
Step 4. Enable EIGRP on the interface with the ipv6 eigrp asn interface subcommand (where theasn matches the ipv6 router eigrp asn global configuration command). |
Configuring EIGRP for IPv6
Step 5. Enable EIGRP for IPv6 with a no shutdown command while in EIGRP configuration mode, if EIGRP is currently disabled |
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Configuring EIGRP for IPv6
Step 6. If no EIGRP router ID has been automatically chosen, because ofnot having at least oneworking interface with an IPv4 address, configure an EIGRP router ID with the router-idrid command in EIGRP configuration mode. |
Configuration step 1: enabling IPv6routing
ipv6 unicast-routing |
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configuration steps 3 and 4
interface FastEthernet0/0. 1 ipv6 address 2012: : 1/64 ipv6 eigrp 9! |
steps 2, 5, and 6
ipv6 router eigrp9 no shutdown router-id10. 10. 34. 3 |
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ipv6 unicast-routing
! ipv6 router eigrp9 no shutdown router-id10. 10. 34. 3 ! interface FastEthernet0/0. 2 ipv6 address 2017: : 1/64 ipv6 eigrp9 |
show ipv6 route
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show ipv6 route eigrp
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show ipv6 protocols
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show ipv6 eigrp neighbors
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show ipv6 eigrp topology
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Named eigrp
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named eigrp |
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Step 1. Configure a Named EIGRP virtual instance using the
router eigrp virtual-instance-name command in global configuration mode. It is under this single virtual instance that alladdress families are configured. |
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Step 2. Specify an address family along with an autonomous system number using the
address family {ipv4 | ipv6} autonomous-system asn command. |
Step 3. Configure general EIGRP settings under Address-Family configuration mode. Examplesofcommands issued in this configuration mode include metric, network, eigrp stub, and eigrp router-id.
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Step 4. (Optional) Enter Address-Family-Interface configuration mode, with the command af-interface {default | interface-id}
default option, commands entered in this configuration mode apply to all interfaces |
Step 5. (Optional) Exit Address-Family-Interface configuration mode (ifcurrently in that mode)with the exit command, and enter Address-Family-Topology configuration mode with thetopology base command.
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router eigrp R1DEMOR1
address-family ipv4 autonomous-system 1 network 0.0.0.0 |
router eigrp R1DEMO
! address-family ipv4 unicast autonomous-system 1 ! af-interface default hello-interval2 hold-time10 passive interface exit-af-interface ! af-interface Serial1/0 no passive interface exit-af-interface !topology base variance2 exit-af-topology network0. 0. 0. 0 exit-address-family ! address-family ipv6 unicast autonomous-system2 ! topology base exit-af-topology exit-address-family |
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USES SAME VERIFCATION COMMANDS |
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A router currently has a complex EIGRPconfiguration, with multiple EIGRP-relatedcommands under various interfaces, in additionto multiple EIGRP commands under routerconfiguration mode. This configuration needsto be simplified so that it becomes easier tounderstand and troubleshoot.
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Replace the router’s traditional EIGRPconfiguration with a Named EIGRPconfiguration, which consolidates all of arouter’s EIGRP commands under a singlehierarchical structure
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If the EIGRP configuration on corporaterouters is migrated from a traditionalEIGRP configuration to a Named EIGRPconfiguration, will network technicians andhelp desk staff need to learn a new set ofverification and troubleshooting commands
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No. Even though Named EIGRP has asignificantly different configuration thana traditional EIGRP configuration, theverification commands (for example, theshow commands) remain the same.
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Enable IPv6 routing.
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ipv6 unicast-routing
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Enable EIGRP for IPv6.
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ipv6 router eigrp {1 – 65535}
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Enable IPv6 on an interface, causing a routerto derive a link-local address for the interface
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ipv6 enable
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Configure an IPv6 address on an interface.
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ipv6 address address/prefix-length [eui-64]
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Enable EIGRP for IPv6 on an interface.
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ipv6 eigrp asn
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Configure a router ID for EIGRP for IPv6.
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eigrp router-id rid
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Create a Named EIGRP virtual instance
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router eigrp virtual-instance-name
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Specify an address family along with anautonomous system number.
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address-family {ipv4 | ipv6} autonomous systemasn
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Enter Address-Family-Interface configurationmode
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af-interface {default | interface-id}
Example af-interface Serial1/0 |
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Enter Address-Family-Topologyconfiguration mode for the base topology
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topology base
example topology base variance2 exit-af-topology |
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Show the variance configured for an EIGRPfor IPv6 autonomous system.
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show ipv6 protocols
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Show the Hello Interval for an EIGRP forIPv6 autonomous system.
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show ipv6 eigrp interfaces detail
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Display the EIGRP topology table for anEIGRP for IPv6 autonomous system
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show ipv6 eigrp topology [all-links]
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Display sent and received updates for anEIGRP for IPv6 autonomous system.
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debug ipv6 eigrp notifications
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