ccna 200 301 network fundamentals pdf

ccna 200 301 network fundamentals pdf.Make the interface passive to the OSPFv3 process to prevent the local router from forming neighbor relationships outside the interface. For the first one, note that all OSPFv3 routers on the same data link need to be assigned to the same area. In the exam, you need to check all the information for the expected zone design. To find out which interface is assigned to which zone, you can use the showipv6 ospfinterface and show ipv6 ospfinterface brief commands. As with setting an interface to be passive to OSPFv3, the router should not make the interface passive to OSPFv3 when a neighbor relationship needs to be established outside the interface. Note that only the show ipv6 ospfinterface command mentions which OSPFv3 interface is passive. Example 17-6 lists two commands that are helpful in finding both of these issues. Both commands list area information, but only the second one mentions whether the interface is passive.Example 17-6 Finding an OSPFV3 Passive Interface on R1Rl# showipv6 ospfinterface brief Interface PID Area Intf ID CostState Nbrs F/C Gi0/0.12 1 0 16 1 DR o/o Gi0/0.11 1 0 17 1 DR 0/0GiO/1 1 4 4 1 DR 1/1 Se0/0/l 1 23 7 64 P2P 1/1 Se0/0/0 1 23 6 64 P2P 1/1Rl# showipv6 ospfinterface G0/0.11GigabitEthernetO/O.11isup, lineprotocolis up Link Local Address FE80::FF :FE00:l,Interface ID17 is silent for. ProcessID1,InstanceID0,Router ID 11.1.1Network Type BROADCAST, Cost: 1 TransmitDelayis1sec,StateDR,Priority 1 DesignatedRouter(ID)1.1. 1.1,localaddressFE80::FF :FE00:l No backup designated router on this network Timer intervals configured, Hello 10, Dead o, Wait 40, Retransmit 5No Hellos (Passive interface) ! remaining lines omitted for brevity16.2 Basics 360 Finally, to illustrate an example problem, check the configuration of R4. To configure correctly in Example 17-3, the engineer makes LAN interface G0/1 passive because there is no other router on this LAN. Note, however, that R4 uses an Ethernet interface as its WAN interface (G0/0) and LAN interface (G0/1). Suppose the engineer makes a small mistake and mistakenly makes R4's G0/0 passive instead of G0/1. to illustrate what happens next.Example 17-7 changes R4's G0/0 interface to be passive to OSPFv3. Note that the neighbor relationship to R4 expires immediately after the passive-interface command is issued. Example 17-7 Neighbor relationship to R4 and R1 expires because of passivity