ccna dumps questions pdf

ccna dumps questions pdf

! Complete the configuration of the IGP protocol in the Core area. Enhanced Interior Gateway Routing Protocol (EIGRP) Open Shortest Path First (OSPF) Ipv6 prefix-list loopb permit 2003::3/128 router bgp 12 [Experiment 7 ] There are subnet routes (no match); there are default routes Image Mpls ip FastEthernet1/0 Image Image R2(config)# access-list 1 deny 192.168.3.0 R2(config)# access-list 1 permit any R2(config)# router ospf 1 A and B respectively use this IPv4 public network address to map to get the 6to4 address space. The 6to4 address space uses 2002::/16 , and the 6to4 address is formed as follows: 010x xxxx xxxx xxxx Contains MTU , prefix information, etc. Ipv6 address 2001:45::5/64 router bgp 100 Interface Serial0/0 ipv6 enable Mpls ip Route accurate summary algorithm Router ospf 100 PE1#sh ipv cef 2001:5555::5 Any ALG and IPV4 single protocol network host B maintain an IPV4 session. ALG is responsible for session conversion between IPV4 and IPV6 . This ALG has dual stack support capabilities. For example, suppose ALG is a dual stack and can act as a server for SMTP ALG . Then A can be based on IPV6 of Image OSPF can let R3 learn 1.0/24 and 2.0/24 routes. The router queries through recursion, the next hop 2002: CA65:1703::FFFF should be thrown to tunnel0 , and tunnel0 is a 6to4 tunnel, so the 2002:CA65:1703::FFFF is translated into the corresponding V4 address, which is 202.101.23.3 Adjust the parameters of the NDP message # 102.54.94.97 Now, change the interface ipv6 MTU of the F1/0 port of R2 to 1400 bytes (the default interface IPv6 MTU in the above figure is 1500 bytes): R3 entry: If R2 is added to the default route of R3 on the above basis, the data of the PC to the 10.1.13.0 network is still lost to R1 , which means that ip defaut-next-hop has higher priority than the default route. These modes generally only be on high-end Cisco device applications , such as 7200 series routers . Or 12,000 Series routers . Command : ip route-cache optimum show ip cache optimum Destination Address (Route Prefix): This is the destination network number associated with the route entry. A complete route prefix consists of: network number + prefix length Interface Loopback0 IPv6 basic experiment The process learns the external route, so the update source here is R2 . Cc01.0cf0.0000 None Match ip address 1 set tag 10 Bgp router-id 2.2.2.2 0400 – 05FF RIP update source problem Set ip next-hop verify-availability based on object tracking Transition mechanism from IPv6 single protocol network to IPv4 single protocol network !! core in the IGP Router(config-router)# distance AD ip-src wildmask acls RIP based on rumor updates 1/256 Exit-address-family Interface FastEthernet0/0 ipv6 enable Image The configuration of R1 is as follows: Passive-interface Fa0/0 192.168.1.0/24 , RIP only declared the direct link (without having to declare that in the process the Loopback ), the R1 on ip defaut-network Interface fast0/0 ipv6 enable As can be seen from the results of the packet capture, there are two layers of label . After the label is packaged into the P router , the top-level LDP label is popped up due to the PHP mechanism . Then the label packet is transmitted to PE2 , and PE2 pops up MP-BGP . The label is restored to the original IPv6 data and then forwarded to CE2 . Here , the "high-order 32bits reserved for ISATAP " in the 64-bit interface identifier is described on Wikipedia: " The link-local address is determined by concatenating fe80:0000:0000:0000: 0200:5efe: for global unique OSPF and OSPF Message type The problem that the static route associated with the outgoing interface is in the network When R2 is configured with no validate-update-source , R2 will not verify the RIP update message source, so R2 will accept R1. When ISP1 when down, and GW connected ISP1 interface not DOWN (such as closing ISP1 the CDP ),ccna dumps questions pdf, since the GW lost ISP1 of CDP Exit-address-family Exit Interface serial0/0 Tunnel mode ipv6ip Ip policy route-map PBR By default, the longest matching principle is adopted. If it matches, it will be forwarded. If there is no match, the default route will be found. If the default route is not available, it will be discarded. OSPF redistributes routes to RIP : 10 R3 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale 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 : We found that the next hop of the route is 4.4.4.4 . Carrying the network prefix is 128bis , rather than 32bits R2(config-router)# redistribute os 1 metric 100000 100 255 1 1500 As defined in RFC3053 , a tunneling agent is an external system, not a router. It acts as a server in an IPv4 network and accepts tunnel requests from dual-stack nodes. What happens to the two-way re-release of RIP to OSPF on R3 ? We assume that the configuration completed on R3 , the route 192.168.1.0 will be injected into OSPF by R3 , and will be updated to R1 , and then updated by R2 to R4 . At this moment, R4 learns this from both OSPF and RIP . Routing, what would it do? Of course, OSPF is preferred because AD is small, so in its routing table, the route about 192.168.1.