ccna course syllabus

ccna course syllabus

The initial situation is the same as above. Let's take a look at redistributing OSPF routes into EIGRP AS 100. The configuration is of course still carried out on R2 . netsh interface ipv6 isatap set router 2.2.2.2 192.168.1.0/24 4 Similar to private addresses in IPv4 . None Packets TCP The configuration of R2 is added as follows: Set ip next-hop verify-availability based on object tracking Mpls ip Configuration example V Image R4 released the RIP route of 100.1.1.0/24 , which can be learned by both ASBRs . The solution is to configure static summary routes on the two ASBRs : Redistribute connected redistribute ospf 1 ICMP redirects are always sent FE80::/10 Tunnel source serial 0/0 tunnel destination 10.1.23.3 Bgp connected eigrp As shown in FIG: Offset-list 1 out 1 serial 0/0 Ipv6 enable Based on CEF IPv4 Stack Dual Stack R1 Typical experiment Network 10.1.23.2 0.0.0.0 area 0 Use a hold-down timer to prevent routing loops Image The configuration is as follows: NAT-PT ( Network Address Translation-Protocol Translation ) Router ospf 1 The above is the type137 message of ICMPv6 sent by R1 to R3 . We need to look at the target address . This is the linklocal address of R2 , which is the next hop that R1 wants to tell R3 that is closer to the target 2222::1 than itself. In the authentication section, the authentication method defined in OSPFv2 is not used . Instead, use AH and ESP to extend the header as a security mechanism. Router request ( RS ) Image Let's look at the picture and deploy a two-way re-release on R2 and R3 . Set metric-type sets the metric type of the target routing protocol When using Ip default-network to refer to a network locally, if the network number exists in the routing table, the router will designate the network as the default gateway. Ip route 0.0.0.0 0.0.0.0 serial s0/2 Image Let's look at the picture and deploy a two-way re-release on R2 and R3 . Routers can learn routing entries in a variety of ways: static manual configuration, various dynamic routing protocols,ccna course syllabus, and more. When the router learns two routes to the same destination from two different ways, the router compares the AD values ​​of the two routes , that is, the management distance, preferably the route with a small AD value. If the AD values ​​are equal, for example, the same routing protocol, the metric value is further compared . Of course, this also involves the working mechanism problem of different routing protocols, which is specifically discussed for different routing protocols. As shown in the following figure, R3 and R1 run the RIP protocol, and R3 establishes adjacency relationship with R2 through OSPF . Therefore, R3 learns the route to the destination 1.1.1.0/24 from RIP and OSPF . The two routes use R1 and R2 as the next hop respectively. Then R3 finally chooses the OSPF route to be loaded into the routing table, which is to use R2 as the actual destination.