ccnp route 300-115 pdf

ccnp route 300-115 pdf

One of the ideal solutions is to transform the network topology: Show ip bgp injected-path to display Although the network devices are in the same subnet, they belong to different pVlans , and communication between pVlans must be implemented through the default gateway. Router ospf 1 R1 and R2 run RIP ; R2 and R3 establish OSPF neighbor relationships. In the initialization case, there are four entries in the routing table of R2 , as shown in the figure above, and there are only two entries in the routing table of R1 , that is, two direct links. So now, we do the re-release action on R2 , and redistribute the OSPF route to RIP , then the configuration is as follows: The AS_SEQUENCE attribute will be passed to R7 along with the route 11.11.11.0 , so the packet is captured on R7 . The attribute of AS_CONFED_SEQENCE is not visible in the route of 11.11.11.0 , so the external AS treats the federation as a single AS (outside I don't know the situation inside the federation) Paths: (2 available, best #2, table Default-IP-Routing-Table) Not advertised to any peer AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd Ip route-cache flow show ip cache flow The route to the nearest BGP NEXT_HOP route is the route with the smallest IGP metric to the next hop router. After the basic configuration is completed, the BGP table of R4 is as follows: Network Management distance ( Administrative Distance , referred to as the AD ) Since the physical layer and the data link layer of the Ethernet are related, a specific data link layer needs to be provided for different working modes of the physical layer. This brings some inconvenience to the design and application. The configuration of R4 is as follows: In this way, the entire network is interconnected. Note that when redistributing routes to OSPF , redistribute rip subnets , this subnets 2/1 BGP path/bestpath attribute entries using 248 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory The command distribute-list out works only on the routes being redistributed by the Autonomous System Boundary Routers (ASBRs) into OSPF. It can be applied to external type 2 and external type 1 routes, but not to intra-area and interarea routes. Sw(config)#vtp transparent The associated PC service, that is , the data frame whose source is the MAC , can enter the interface. Topology change process example 3.3.3.3 So how do you perform an accurate calculation of the summary route ? Let's look at an example: Apply ARP ACLs to DAI These two types of MACs are integrated in the network card. When the network card is initialized, the auto-negotiation is generally performed. The operation mode is determined according to the result of the auto-negotiation, and then the corresponding access MAC is selected according to the operation mode . 1 i The ARP packet of the element , then these messages correspond to an entry to save buffer usage. At the same time, only one system information will be generated. Match ip address 1 set metric 20 Allows up on a single switch . 8 th 802.1q to ISL vlan mappings A multiply character can be applied to a single character or multiple characters. If applied to multiple characters, put the string in (). 13 Origin IGP, metric 0, localpref 100, valid, internal, best Open loopback on R2 , IP is 172.16.10.0/24 , 172.16.11.0/24 Ip route 172.16.1.0 255.255.255.224 192.168.12.1 246 1 i The above match statement is used to match the summary route. Configuring the sample EIGRP environment Must be zero RIPng None does not send updates ( passive ) OSPFpassive-interface neither sends nor receives routing updates, nor does it send HELLO packets. Neighbor 4.4.4.4 update-source Loopback0 neighbor 10.1.25.2 remote-as 200 Next Hop Isolated Origin IGP, metric 0, localpref 100, valid, external, multipath When R2 is configured with no validate-update-source , R2 will not verify the RIP update message source, so R2 will accept R1. Sh ip bgp neighbors {address} received-routes ? 1> Soft reset using updated routing information Network 172.16.10.0 mask 255.255.255.0 The keyword should be added, otherwise the main class route will only be re-published. Redistribute ospf 1 metric 3 Preferably EBGP route 10.1.13.1 R1(config-router)# neighbor 10.1.12.2 route-map rp out The smaller the MED, the higher the priority Ip prefix-list ABC seq 5 permit 0.0.0.0/0 le 32 This route was therefore sent to R1 . Path Route-map nat1 permit 10 match ip address 1 match interface serial0/0 Since the flash space is very limited, it is recommended to store the file on the TFTP server. When deploying on a TFTP server, be careful to first create an empty file to correspond to the URL in the configuration command . This file is used for dhcp snooping bingding database writes (depending on the device). Route-map Configure the aging time of the security address. O Access-list 1 permit 1.1.1.0 3.3.3.3 No passive-interface fast 0/24 Connection-oriented and reliable data transmission service Requires trunk link support between switches Using route reflector 23 Establish IBGP full interconnection and close the synchronization mechanism. This method is basically used at present. But this method has a flaw, that is, if IBGP Configuration Example 4 (at a single routing protocols -OSPF ) Match ip address 1 SW2 and SW3 are similar situations; note that at this point we are not allowed to do any static configuration of the allowed vlan configuration on the trunk port. Send Update package ? Community value (route), then how to write it? If you directly match no-export , it will match with 11.11.11.0 , so you should use the exact-match keyword. If configured on R3 as follows: Route redistribution is directed. The routing information of the A routing domain is injected into the B routing domain. We need to configure it in the process of the B routing protocol. For example, to redistribute other routing protocols to RIP , then configure. As follows (republishing to other routing protocols is similar): Frame check sequence FCS Aggregate-address summary address summary-only as-set Remarks BGP table on R4 : *> 11.11.11.0/24 Interface s0/0 * i100.0.1.0/24 As mentioned above, a route is allowed to carry multiple community values ​​to form a community list. If you want to delete one or several community values, for example, ARP packets are detected and released directly. For untrusted interfaces, ARP packet after receiving back checks only legitimate ARP packets can not be released, if the emergence of illegal ARP packets, it will be log , while discarding. ORIGINATOR_ID and CLUSTER_LIST A BGP neighbor has an impact only on the router. It can be understood as a weight value. The larger the priority, the higher. The value is in the range 0-65535 . The range is 1-255 200 i Host address. Switching, and store the information in the cache, all subsequent data packets , you can not interrupt the system processor to perform queries and other operations , directly from Ethernet data link layer Then, in order for R3 to dynamically learn the routing of production and office servers, it is now necessary to redistribute these two static routes into OSPF . Of course, there are tricks when re-publishing. Router bgp 100 Match ip add pre 1 After Port-Security is activated on the interface , the interface has certain security functions,ccnp route 300-115 pdf, such as limiting the maximum number of MACs of the interface (connected) , thereby limiting the access host users; or limiting the specific MAC to which the interface is connected . Thereby achieving the restriction of accessing users. Then to perform filtering or limiting actions, you need to have a basis, which is based on the secure address – secure MAC address .