ccnp tshoot exam difficulty

ccnp tshoot exam difficulty

Layer 3 interface: routing interface ( no swithport or called routed port ), SVI interface External EIGRP Network RIP Version 2 MIB Extension R3 configuration is as follows Request the entire routing table: The request message contains a single route with an address family identifier field of 0 (address 0.0.0.0 ) and a metric of 16. The device receiving the request will unicast it back to the requesting address. The entire routing table. 32 bits The configuration of R2 is as follows: Route reflection clusters include reflectors and their clients The same prefix is ​​obtained through different protocols, first than AD , and later than metric Route-map usage scenario The rules for BGP next-hop are as follows: basic concept Neighbor No confirmation mechanism, anyone can initiate an arp request or response If you reconfigure a secure access port as a trunk, port security converts all the sticky and static secure addresses on that port that were dynamically learned in the access VLAN to sticky or static secure addresses on the native VLAN of the trunk. Port security removes all Secure addresses on the voice VLAN of the access port. BGP introducing and transmission routes Ip default-network 108 BGP state machine The next outgoing interface of the route is the port of the match . As shown above, the R1 deployment, R1 use heavy publishing directly connected with the introduction of the three external routes,ccnp tshoot exam difficulty, then out distribution lists direction only HELLO time This idea has been applied to dynamic routing protocols such as OSPF . Careful children's shoes will find that after you deploy route summarization in OSPF , it will automatically generate a summary route pointing to null0 locally . The reason is explained above. the same. Write-delay Configure delay timer for writes to URL Use a static route to the next hop Metric Management adjustments 200 Delete a specific community value in the community list 1,10 Abc*d Route redistribution The IP header is 20 bytes, the ICMP header is 8 bytes, and the ICMP data payload is 1472 bytes, which is exactly 1500 bytes. Therefore, on the CISCO IOS device, the size followed by the ping refers to the entire size of the outgoing IP packet. confidential 2 : RIP-2 . Ip address 100.0.2.1 255.255.255.0 0.0.0.0 200 ? Run RIP between R1 , R2 , and R3 , and R1 and R2 are injected into their respective loopback ports. Port UPDATE message BGP decision Access-list 1 permit 1.1.1.0 The secondary VLAN is mapped to the SVI interface of the primary VLAN , allowing for Layer 3 switching of pVLAN ingress traffic. Management VLAN of the Layer 2 switch Switch(config)# spanning-tree [ vlan vlan-id ] hello-time sec Switch(config)# spanning-tree [ vlan vlan-id ] forward-time sec Switch(config)# spanning-tree [ vlan vlan-id ] Max-age sec VTP pruning 10.1.13.3 10.1.12.1 from 10.1.12.1 (1.1.1.1) 10.1.23.0 is directly connected, Serial0/0 *>i11.11.11.0/24 Protocol vulnerability MAC sublayer And the preferred order is: i > e > ? ? After completing the configuration, R2 show ip route The route closest to BGP NEXT_HOP is preferred , and the route is the route with the smallest IGP metric to the next hop router . 1,10,20,30 !! In the case of turning off VTP prunnig , trunk defaults to traffic for all VLANs , which is in SW2 Neighbor 10.1.12.2 advertise-map RP1 non-exist-map RP2 Community: inherits the community of all detailed routes , forming a list Path Ip route 0.0.0.0 0.0.0.0 null0 router bgp x 0xFFFF Then the routing table of R2 is as follows: 0 0 In the R3 , the route AS_PATH learned from R2 about 1.1.1.0 will become " 6666 200 i ", because R3 receives 1.1.1.0 Access-list 1 permit 10.1.1.0 0.0.0.255 route-map test permit 10 In SW3 created on 10 , 20 , 30 three VLAN Requires trunk link support between switches Too many neighbors, managing these IBGP adjacencies will be a challenge and burden the device. Fortunately, we have two measures to help solve the problem, 1 is the route reflector 2 is federated. RIP-1 only sends RIPv1 updates 20.20.20.0/24 Must be zero NEXT-HOP Paths: (2 available, best #1, table Default-IP-Routing-Table) Flag: 0x820 RIP update behavior Field name For example, R1 redistributed into direct on the OSPF , with out distribution list can be filtered out direction 1.1.1.0 this external routes. But R1 redistributed incoming routing, if R2 with the out distribution lists direction tried to block R3 accepted routes or LSA , you can not, because this is not a local external routes originating. Ip route 10.1.1.0 255.255.255.0 10.1.254.1 Prefix list is much more controllable than access list, supports incremental modification, and is more flexible R1(config)# access-list 1 deny 172.16.32.0 R1(config)# access-list 1 permit any IP policy routing is disabled Two-way re-release on R2 . Under normal circumstances, R1 can learn 3.3.3.0 , and R3 can learn 1.1.1.0. Because Layer 3 switches support so many types of interfaces, the deployment of Layer 3 switching networks is more flexible and scalable. Router bgp 64512 Vlans allowed and active in management domain *>i A router that does not support the route reflector function can act as a single router cluster or as a client The packet contains a maximum of 25 routing entries. Optional attribute The cost value is increased, so that the OSPF metric of R4 going to 3.3.3.3 route becomes larger. What happens? ? Match metric matches the route with the specified metric. match route-type matches the specified type of route match community matches the BGP community. Then 1 , 2 compare first, 1 is preferred (because 1 has a smaller MED ); since 1 and 3 are in the same AS , so again As shown above, the R1 deployment, R1 use heavy publishing directly connected with the introduction of the three external routes, then out distribution lists direction only In the R3 , the route AS_PATH learned from R2 about 1.1.1.0 will become " 6666 200 i ", because R3 receives 1.1.1.0 Bgp fast-external-fallover The new routing table is typically sent to neighboring routers on a regular basis, and the triggered update is sent immediately in response to changes in the routing table. The idea is the same as Experiment 2 . In this way, SW2 will accept these DHCP messages and process them, and the PC will be able to obtain the address. Using ICMP protocol to detect 10.1.1.2 reachability (source address 10.1.1.1 to ping10.1.1.2 ) Track Object 's ID is 1 , associated to ip sla monitor 1 Match community 11 exact-match // strict match *>i100.0.2.0/24 Router(config-dhcp)#default-router [host address] Path control 77  open Match ip address pref 1 set local-preference 100 An escape character that is used to convert the control character immediately following it to a normal character Create a VLAN As a result, when PC2 sends data to its own gateway 0.254 , since the MAC of the gateway has been spoofed into the MAC of PC1 , the data is forwarded to PC1 , and PC2 is disconnected. If PC1 is smarter, transfer the data sent by PC2 to the real gateway, and run a message analysis tool locally to snoop the data sent by PC2 . Then, in the case of PC2 continuous network, God does not know. I feel the Internet traffic of PC2 , this is the man in the middle , the middleman attack.