cisco ccna certification cost

cisco ccna certification cost.The RIPng connection uses UDP port 521, and the destination address it uses is the multicast address FF02::9o0SPFv3 Many of the features of 0SPFv3 have been improved to make it as scalable as other interior gateway protocols. The protocol number for OSPFv3 is 89. here are some of the improvements made to 0SPFv3. . As with 0SPFv2 (IPv4 ). the 0SPFv3 process requires a router ID. which is a 32-bit number that must be configured statically and cannot be obtained based on the IPv4 address of the routing device because the routing device may not be using IPv4 at allo . When establishing an adjacency. the router uses its link-local address as the source address. In the link state database and routing table. the next-hop address is the link-local address. . Because a link-local address is used. a conflict in the global address of an interface does not result in the inability to establish an adjacency. In other words, the global addressing structure does not affect the interface. In 0SPFv2,this would result in the router being unable to establish an adjacency, whereas in 0SPFv3 this would not cause a problem.. Any router in the region can perform aggregation or filtering. In 0SPFv2, only ABRs and ASBRs can perform aggregation or filtering, whereas any EIGRP router can do so, which is a huge drawback of 0SPFv2 compared to EIGRP, and it severely limits the scalability of OSPFv2. 0SPFv3 no longer has this problem.EIGRPfor IPv6 has been updated to support IPv6 routing, and the updated version is called EIGRP for IPv6 oEIGRPfor IPv6is a separate process that is not part of the EIGRP for IPv4 configuration. It supports the same features as EIGRP for IPv4: DUAL algorithm, rich metric structure, load balancing, etc.Implementation PoliciesWhen migrating a network to IPv6, it is not necessary to complete the entire network at once. There are various migration strategies that support both IPv4 and IPv6 when migrating from IPv4 to IPv6, and Table 23.2 briefly describes these approaches. The next two subsections discuss two of the most common approaches: dual-stack and manual tunneling techniques.Be sure to familiarize yourself with the contents of Table 23.2. A router that runs both IPv6 and IPv4 is called a dual-stack router. Connecting different IPv6 networks by encapsulating IPv6 packets in IPv4 packets is known as a 6to4 tunneling technique.623 Part 6 Cisco Router Advanced Features Table 23.2 IPv4 to IPv6 Migration Method Migration Method DescriptionDual Stack Devices such as PCs and routers run both IPv4 and IPv6, and therefore have two sets of addresses