cisco ccna book

cisco ccna book

! Fast Switching Probe Image Route-map test permit 10 match interface Serial0/0 router ospf 1 IPv6 Multicast :: Router(config-router)# distance ospf external ad1 inter-area ad2 intra-area ad3 In order to get this prefix automatically, just run a protocol between the router and the host. Router using NDP protocol Distribute-list 1 in As shown in FIG: Image Router(config-router)# no adjacency-check The functional components of ISATAP are as follows: Exit-address-family !! no-autoconfig is related to A bit, as defined in RFC2461 . The A bit also becomes an autonomous address configuration flag. When this optional keyword no-autoconfig is configured in CISCO IOS (that is, with the above command), the A bit is set to 0 . If the A bit is set to 1 (the default is 1 ), it indicates that the host on the local link can use this prefix for stateless autoconfiguration. F : Reserved. !! Activate the IPv6 address family with PE2 The range of prefixes to match, ranging from ge-value to 32 Image RFC2082 2002::2 Address-family ipv4 Ipv6 router ospf 1 router-id 2.2.2.2 When the router performs a classless route lookup (by default, ip classless ), it does not pay attention to the class of the destination address. It performs the longest match between the destination address and all known routes bit by bit . The planning of the IS-IS network is as shown in the topology. An address is called a "tentative address " before the duplicate address detection ( DAD ) , and the address is tested. The interface is temporarily unable to use this trial address for normal unicast communication, but will join the Solicited-Node multicast group corresponding to the tentative address . Image Linklocal address of the router : In label/Out label Match metric matches the route with the specified metric. match route-type matches the specified type of route match community matches the BGP community. Other arbitrary broadcast configuration address: 2000::/3 172.16.10.1 , in fact, this IP may be understood as 172.16.0.0/16 within the network, but also in 172.16.10.0/24 within the network, of course, here we can see it, then who is more accurate? It is clear that 172.16.10.0/24 is more accurate,cisco ccna book, we say that its matching length is longer than 172.16.0.0 . UP Complete VRF configuration and MP-BGP configuration. !! NET entity address !! Note that on IPv6- capable PEs , IPv6 cef must be open. Let's take the example of R1 . On R1 , the configuration might look like this: Image Image Valid lifetime is similar to dhcp in the Lease Time . If the address exceeds the valid lifetime , the node will set this address to inactive and then delete . Between the preferred time and the valid lifetime is called the deprecated state. This state is a buffer . It is probably a deprecated state. When the address reaches this time period, the address cannot be actively initiated. The connection can only be passively accepted. Connection, this is also designed to ensure the upper layer application, but after the valid lifetime time address becomes invalid , then any connection will be down .