IPv6 Routing Protocols pptx

© 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialBSCI 1 IPv6 BSCI Module 8 – Lesson 4&5 IPv6 routing Implementing and Verifying OSPFv3 © 2008 Cisco Systems, Inc. All rights reserved.BSCI 2 CCNP – BSCI Bachkhoa Networking Academy Học viện mạng Bách Khoa - www.bkacad.com Objectives  Describe how OSPF for IPv6 works  Explain the similarities and differences between OSPF for IPv6 to OSPFv2  Describe the differences between OSPF LSA types used with IPv4 and IPv6  Explain the configuration modes and Cisco IOS attributes specific to OSPFv3  Explain how to configure OSPFv3  Explain how to verify OSPFv3 © 2008 Cisco Systems, Inc. All rights reserved.BSCI 3 CCNP – BSCI Bachkhoa Networking Academy Học viện mạng Bách Khoa - www.bkacad.com IPv6 Routing Protocols © 2008 Cisco Systems, Inc. All rights reserved.BSCI 4 CCNP – BSCI Bachkhoa Networking Academy Học viện mạng Bách Khoa - www.bkacad.com IPv6 Routing Protocols  IPv6 routing types: –Static –RIPng (RFC 2080) –OSPFv3 (RFC 2740) –IS-IS for IPv6 –MP-BGP4 (RFC 2545/2858) –EIGRP for IPv6  ipv6 unicast-routing command is required to enable IPv6 before any routing protocol configured. © 2008 Cisco Systems, Inc. All rights reserved.BSCI 5 CCNP – BSCI Bachkhoa Networking Academy Static route  Configuring Static IPv6 Routes Router(config)#ipv6 route ipv6-prefix/prefix-length {next-hop | interface} [distance] Displaying IPv6 Routes Router#show ipv6 route © 2008 Cisco Systems, Inc. All rights reserved.BSCI 6 CCNP – BSCI Bachkhoa Networking Academy Học viện mạng Bách Khoa - www.bkacad.com RIPng  Same as IPv4: –Distance-vector, radius of 15 hops, split-horizon, and poison reverse –Based on RIPv2  Updated features for IPv6: –IPv6 prefix, next-hop IPv6 address –Uses the multicast group FF02::9, the all-rip-routers multicast group, as the destination address for RIP updates –Uses IPv6 for transport –Named RIPng © 2008 Cisco Systems, Inc. All rights reserved.BSCI 7 CCNP – BSCI Bachkhoa Networking Academy Configuring RIPng  Router(config)#ipv6 router rip tag © 2008 Cisco Systems, Inc. All rights reserved.BSCI 8 CCNP – BSCI Bachkhoa Networking Academy Học viện mạng Bách Khoa - www.bkacad.com Integrated Intermediate System-to- Intermediate System (IS-IS)  Same as for IPv4.  Extensions for IPv6: –2 new type-length-values (TLV): •IPv6 reachability (with 128 bits prefix) •IPv6 interface address (with 128 bits) –New protocol identifier –Not yet an IETF standard © 2008 Cisco Systems, Inc. All rights reserved.BSCI 9 CCNP – BSCI Bachkhoa Networking Academy Học viện mạng Bách Khoa - www.bkacad.com Multiprotocol Border Gateway Protocol (MP-BGP) (RFC 2858)  Multiprotocol extensions for BGPv4: –Enables protocols other than IPv4. –New identifier for the address family.  IPv6 specific extensions: –Scoped addresses: NEXT_HOP contains a global IPv6 address and potentially a link-local address (only when there is a link-local reachability with the peer). –NEXT_HOP and NLRI (Network Layer Reachability Information) are expressed as IPv6 addresses and prefix in the multiprotocol attritubes. © 2008 Cisco Systems, Inc. All rights reserved.BSCI 10 CCNP – BSCI Bachkhoa Networking Academy IS-IS for IPv6  Large address support facilitates the IPv6 address family. Intermediate System to Intermediate System (IS-IS) is the same as IPv4 with the following extensions added:  Two new Type, Length, Value (TLV) attributes  IPv6 reachability  IPv6 interface address  New protocol IDS  Not yet an IETF standard Học viện mạng Bách Khoa - www.bkacad.com [...]... –show ipv6 ospf [process-id] database link –show ipv6 ospf [process-id] database prefix BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com 32 CCNP – BSCI Bachkhoa Networking Academy OSPFv3 Configuration Example Router1# interface S1/1 ipv6 address 2001:410:FFFF:1::1/64 ipv6 ospf 100 area 0 interface S2/0 ipv6 address 3FFE:B00:FFFF:1::2/64 ipv6 ospf 100 area 1 ipv6. .. commands with ipv6  Interfaces configured directly: –Replaces network command  “Native” IPv6 router mode: –Not a submode of router ospf command BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com 27 CCNP – BSCI Bachkhoa Networking Academy IPv6 and OSPFv3 Commands Command Description Router(config) #ipv6 unicastrouting Enables the forwarding of IPv6 unicast datagrams...  Updated features for IPv6: –Every IPv4-specific semantic is removed –Carry IPv6 addresses –Link-local addresses used as source IPv6 transport –OSPF for IPv6 is currently an IETF proposed standard BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com 11 CCNP – BSCI Bachkhoa Networking Academy Implement OSPF for IPv6  Enabling OSPF for IPv6 on an Interface –1... configuration mode Router(config-if) #ipv6 address address/prefix-length [eui-64] Configures an IPv6 address for an interface and enables IPv6 processing on the interface The eui-64 parameter forces the router to complete the addresses’ low-order 64-bits by using an EUI-64 interface ID Router(config-if) #ipv6 ospf process-id area area-id [instance instance-id] Enables OSPF for IPv6 on an interface 4 Router(config-if)#router... terminal –3 interface type number –4 ipv6 ospf authentication ipsec spi spi md5 [keyencryption-type {key | null}] BSCI © 2008 Cisco Systems, Inc All rights reserved 13 CCNP – BSCI Bachkhoa Networking Academy Self Check 1 What global configuration command is used to enable IPv6 before any routing protocol can be configured? 2 How is IPv6 similar to IPv4 classless interdomain routing (CIDR)? 3 How does RIPng... for IPv6  Enabling OSPF for IPv6 on an Interface –1 enable –2 configure terminal –3 interface type number –4 ipv6 ospf process-id area area-id [instance instance-id]  Defining an OSPF for IPv6 Area Range –1 enable –2 configure terminal –3 ipv6 router ospf process-id –4 area area-id range ipv6- prefix/prefix-length [advertise | not-advertise] [cost cost] BSCI © 2008 Cisco Systems, Inc All rights reserved... www.bkacad.com 30 CCNP – BSCI Bachkhoa Networking Academy Enabling OSPFv3 on an Interface router(config)# interface Ethernet0/0 router(config-if)# ipv6 address 3FFE:FFFF:1::1/64 router(config-if)# ipv6 ospf 1 area 0 router(config-if)# ipv6 ospf priority 20 router(config-if)# ipv6 ospf cost 20 BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com 31 CCNP – BSCI Bachkhoa Networking... Enabling OSPFv3 Globally router# router# configure terminal router(config)# ipv6 unicast -routing router(config)# ipv6 router ospf 1 router(config-router)# router-id 2.2.2.2 BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com 29 CCNP – BSCI Bachkhoa Networking Academy Steps for Enabling IPv6 and OSPFv3 on an Interface Step Command or Action Purpose Router(config)#interface... rights reserved Học viện mạng Bách Khoa - www.bkacad.com 16 CCNP – BSCI Bachkhoa Networking Academy OSPFv3—Similarities with OSPFv2  OSPFv3 is OSPF for IPv6 (RFC 2740): –Based on OSPFv2, with enhancements –Distributes IPv6 prefixes –Runs directly over IPv6  OSPFv3 & v2 can be run concurrently, because each address family has a separate SPF (ships in the night)  OSPFv3 uses the same basic packet types... forwarding of IPv6 unicast datagrams Router(config) #ipv6 router ospf process-id Enables an OSPF process on the router The processid parameter identifies a unique OSPFv3 process This command is used on a global basis Example: Enables the OSPFv3 process number 1 on the router Router(config) #ipv6 router ospf 1 Router (config-router)# router-id router-id For an IPv6- only router, a router-id parameter must be . www.bkacad.com IPv6 Routing Protocols © 2008 Cisco Systems, Inc. All rights reserved.BSCI 4 CCNP – BSCI Bachkhoa Networking Academy Học viện mạng Bách Khoa - www.bkacad.com IPv6 Routing Protocols  IPv6 routing. (RFC 2080) –OSPFv3 (RFC 2740) –IS-IS for IPv6 –MP-BGP4 (RFC 2545/2858) –EIGRP for IPv6  ipv6 unicast -routing command is required to enable IPv6 before any routing protocol configured. © 2008 Cisco. Academy Static route  Configuring Static IPv6 Routes Router(config) #ipv6 route ipv6- prefix/prefix-length {next-hop | interface} [distance] Displaying IPv6 Routes Router#show ipv6 route © 2008 Cisco Systems,