ccna v3 dumps pdf

ccna v3 dumps pdf

Image Vif PGM Multicast Host interface Before routing 0bits must 0.0.0.0 ago 0 Ge bit match, in fact, all the bits does not matter, but also for the mask, that did not write ge keyword is implicit so ge 0 Le 32 , that is, cover The code length is greater than 0 and less than or equal to 32 . So this prefix list is permit Image Network 192.168.254.0 0.0.0.255 area 1 OSPFpassive-interface neither sends nor receives routing updates, nor does it send HELLO packets. The configuration of R4 is as follows: Image Next hop 10.1.12.2, FastEthernet0/0 valid adjacency Ipv6 unicast-routing First on PE1 , take a look: Set metric 2 !! Change the metric to 2 !! ipv4 routing, so that the route can access the tunnel destination , which is 10.1.23.3 Image When both the primary and secondary addresses are present, the RIPV1 router will use the mask of the secondary address of the interface that receives the route update packet locally (this has been verified in the above experiment). If the above is replaced by EIGRP , the phenomenon is the same as RIP , R1 will declare 1.1.1.0 into EIGRP. Address-family ipv6 neighbor 2001::1 activate OSPF redistributes routes to RIP : --- The MPLS Domain consists of three routers: PE1 , P , and PE2 . The IGP protocol running in the domain is OSPF , and the process ID is 100 . Each of the three routers announces its own loopback port into Core 's OSPF . The address of Loopback is xxxx/32 , and x is the router number, such as PE1 is 2.2.2.2 , P is 3.3.3.3 ,ccna v3 dumps pdf, and PE2 is 4.4.4.4 . The RA message of this response contains the /64 prefix of the IPv6 global unicast address configured on ISATAP . Of course, the subnet 172.16.0.0/16 can be further subnetted to get 172.16.10.0/30 or even 172.16.10.1/32 , then if these prefixes exist, when I am going to find 172.16.10.1 , who's What is the highest match? Obviously, is the host prefix of 172.16.10.1/32 , or host routing? This is the longest match principle . When the IPv6 address is shorthand, multiple leading zeros can be omitted into a 0 ; Image Ip route 1.1.1.0 255.255.255.0 serial 0/0 Activate OSPFv3 on the interface Tunnel mode ipv6ip isatap X Update behavior 4 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. IPv6 routing basis Double-point bidirectional routing re-release Via FE80::FFFF:FE10:5, Serial0/0 Gateway of last resort is 172.16.3.0 to network 172.16.0.0 Tag or VC ! 00 Typical configuration example: Exit Address-family ipv6 Hop-by- hop option header Hop-by-Hop Options Header (Protocol 0 ) Image IPv6 packets are carried over IPv4 packets. Router(config-router)# address-family ipv6 [unicast] IPv6 basic experiment The ISATAP host can construct an IPv6 address based on this prefix and its own interface identifier . Technical analysis: IPv6 basic experiment ! Image Image The destination IP address of the route , which can be the address of the natural network segment or the subnet address or Image Image Reference material LSP Holdtime Address does not need Interface FastEthernet0/0 ipv6 ospf 1 area 0 Interface Serial0/0 ipv6 enable Bgp router-id 2.2.2.2 Used to limit the time that the route staying in the routing table has not been updated. 5 : local site range; ACL Image First, the Source sends an IPv6 packet to the target node with 1500 bytes as the MTU. Ipv6 address FE80::FFFF:FE10:6 link-local ipv6 router isis Image Ip address 10.1.23.3 255.255.255.0 0000 1xxx xxxx xxxx After these packets arrive at R1 , the R1 router supports IPv4 and IPv6, which is a dual-stack router. R1 and R2 establish a tunnel to connect two IPv6 islands that are respectively hanged at R1 and R2 . The original IPv6 packet sent by the PC is added with an IPv4 tunnel header by R1 , forming a message that looks like an IPv4 packet. Thereafter, this message is routed in the IPv4 network and eventually reaches R2 . After receiving the "tunnel packet", R2 removes the IPv4 header of the packet and then restores the original IPv6 packet to the IPv6 network.