ccna paper

ccna paper

Basic knowledge Image Ipv6 address 2001:45::4/64 ... partially omitted ... Ip address 2.2.2.2 255.255.255.255 Configuration example Image Image 1 : node local range; single interface is valid, only for Loopback communication Single match includes a plurality of conditional statements, logical or operation; multiple match when the statement, using the logic and operation. ! When 10.1.1.2 is reachable, the track object is true IP address, and then take the destination IP address to look up in its own routing table. After finding the "best match" entry,ccna paper, the packet is forwarded according to the outbound interface or next hop IP indicated by the routing entry . This is the IP route. ( IP routing ) . And each router maintains a routing table locally. Redistribute ospf 3 subnets route-map OSPF3to2 [Experiment 2 ] Both IPv6 islands use ordinary IPv6 global addresses. Interface Ipv6 rip RIPprocess enable OSPF TAG Overview Origin incomplete, metric 1, localpref 100, valid, internal, best mpls labels in/out nolabel/403 Router rip The certificate contains the password information when it is verified using plain text. Netsh interface ipv6 add route ::/0 " local connection " 2010::1 Routing strategy needs (reliability, redundancy, offloading model, etc.) Image twenty two ! Unassigned Note: If CDP- based detection and object tracking- based detection are applied, the latter is preferred. ! Holddown defaults to 0 , which means that the garbage-collect default 120S is not used. Image Prefix announcements are the initial mechanism for stateless autoconfiguration. Using RA ( ICMPv6 Type 134 ) and the multicast address of all nodes ( FF02::1 ), the router RA message is periodically sent to FF02::1 on the local link . R2 Then, first R2's own routing table will change, 3.0 routing is filtered out, and R3 is the downstream RIP router, 3.0 can not learn. The session between Source and Destination is established. RIP Version 2 Protocol Analysis Sourced in sev-epoch 1 Encap length 14 Access-list 2 permit 2.2.2.0 Offset-list Acl number in/out offset value interface Receiving behavior Ipv6 enable Network Local link Fast switching is superior to process switching, it uses a route cache ( route cache ) for storing information about a stream of data (Flow) specific information , Thus, A initiates access connection to B , or B initiates access to the A can be. !! Re-release direct connection Mpls ip IPv6 Address(es): FE80::FFFF:FE10:4 OI 2001:1:1::1/128 [110/192] Image RIPv2 Interface Serial0/0 ipv6 enable Route filtering or execution strategy during redistribution Ipv6 ospf 1 area 1 PBR case Vrf definition cisco rd 1:1 ... partially omitted ... Disadvantages: Each device needs to be configured with two protocols, which need to occupy resources. The device needs to store two routing tables (if it is a router), and each protocol needs to be processed independently. Access-list 1 permit 172.16.10.0 Ipv6 rip 1 default-information only //In interface mode, only the default route is advertised, and other routing information is prohibited. 6to4 relay. IANA has assigned a 6to4 relay anycast prefix 192.88.99.0/24 specifically for automatic routing of 6to4 packets to the nearest 6to4 Net 49.0001.0000.0000.0002.00 Local link Exit Path Control Overview Next hop 10.1.12.2, FastEthernet0/0 valid adjacency ! ! In the example, the static route associated with the next hop does not have this attribute, so it is not matched. Y In the above figure, there is a problem with the network on the left side. The L2 router of the IPv4 single protocol does not support IPv6 , thus destroying the continuity of the IPv6 L2 router . The network on the right is the correct structure. Image Image The IPv6 representation is 2002.c058.6301:: . In your 6to4 configuration, you can use ipv6 roiute ::/0 2002.c058.6301:: to configure the default route. Image PBR (Policy Routing) R2(config)# access-list 1 deny 192.168.3.0 R2(config)# access-list 1 permit any R2(config)# router ospf 1 Each router running RIP manages a routing database that contains routing entries to all reachable destinations on the network. These routing entries contain the following information: Passive-interface Fa0/0 neighbour xxxxxx 32 bits 12 R2(config-router)# distribute-list 1 in fa0/0 Address-family ipv6 neighbor 2001::1 activate Image A very simple method, assuming R3 on the R3 , the first RIP to OSPF route re-release, as already mentioned, a direct problem is on R2 , due to the 192.168.1.0/24 route, and from OSPF and RIP learned, and OSPF the AD value is small, thereby resulting in sub-optimal path, so in order to circumvent this problem, we can directly in R2 deployment on the distribution list, so that the OSPF routing is not loaded into the routing table, in order to avoid suboptimal Path problem.