testking ccna

testking ccna

29 Image Then the inner IPv6 header, the source is the Linklocal address of the ISATAP host , and the purpose is the Linklocal address of the ISATAP router. Isis circuit-type level-2-only interface Serial0/1 parameter Authentication Type ! Manual tunneling technology: manual IPv6 over IP tunnel, GRE tunnel Fa0/0 Image ::FFFF: 4.4.4.4 Immediate Outgoing interface list: Image RS 133 Address-family ipv6 Interface-level command to join a multicast group, that is, the interface becomes a member of the multicast group. Then, in order for R3 to dynamically learn the routing of production and office servers, it is now necessary to redistribute these two static routes into OSPF . Of course, there are tricks when re-publishing. Let's look at the picture and deploy a two-way re-release on R2 and R3 . NAT (Network Address Translation) Image Source starts to send IPv6 packets using MTU=1400 , and the packet arrives at B. Image Remarks The link layer address corresponding to the Layer 3 address is parsed by the neighbor request ( NS ) and the neighbor advertisement ( NA ) message. The 64bits interface ID , and FE80 :: / 10 constitute a PC 's Linklocal address: fe80 :: 200: 5EFE: 1.1.1.1 At the same time, PC will ISATAP router Linklocal address fe80 :: 5efe: 2.2.2.2 set as the default gateway We mainly analyze: 110 Basic Ipv6 nat v6v4 source 2001:1::1 202.101.100.111 Interface fa1/0 Ipv6 enable (interface) ip load-sharing per-packet Tag rewrite with Fa0/0, 10.1.12.2, tags imposed: {} If B replies to NA , then the neighbor state on B on A is Incomplete -> Reachable . However, if A does not receive any response within a certain period of time after A sends out the NS message ,testking ccna, the entry is deleted by Incomplete->Empty . ! IPv6 Address(es): FE80::FFFF:FE10:4 Image Interface fast0/0 Ipv6 enable 6 1/1024 Image Routing Feedback (feedback) is a re-release in the deployment of routing requires a great attention to the phenomenon. As shown above, R5 will ! ! Because IS-IS runs on top of the data link layer, that is, it runs on top of the link layer protocol and requires CLNP support. Therefore, IPv6 IS-IS cannot be used on a remote IPv6 network connected through a tunnel . Configuring a tunnel is a static IPv6 over IPv4 tunnel. State Holdtime Circuit Id ! ...... Image Ipv6 address 2001:45::4/64 No shutdown interface loopback 0 In the area 1 via interface Serial0/0 ::1 No bgp default ipv4-unicast neighbor 2023::2 remote-as 12 Preferred lifetime ( of Preferred Lifetime ) 1/256 ! Routing Information Protocol (RIP) After changing the topology, the interface IP of R2 has changed. At this time , the RIP sent by R1 is updated, and the source address is still 192.168.12.1 . After receiving R2 , it finds that the interface IP that is updated with the local is not in a subnet, so R2 ignores the update message of R1 . In addition, the message sent by R2 to R1 is accepted by R1 , because R1 thinks that the RIP update message source address 192.168.12.5 sent by R2 is on the same subnet as its own interface.