how to master ccnp route pdf free

how to master ccnp route pdf free

^a.$ ? Ip prefix-list 1 permit 100.0.1.0/24 ip prefix-list 2 permit 100.0.2.0/24 route-map LP permit 10 Static routes Ip address 100.0.2.1 255.255.255.0 We know that the AD value of a static route is 1. The above configuration method actually changes the AD value of the static route to 10 . In this way, we have two default routes, one for the telecom exit, the AD value is the default 1 ; the other points to the education network exit, and the AD value is 10 . Then after *Mar 1 00:11:47.999: ICMP: echo reply rcvd, src 2.2.2.2, dst 192.168.123.3 No-advertise R1 , R2 , and R3 run RIP , and 1.1.1.0/24 on R1 is not directly announced. On R2 : Redistribute ospf 1 match nssa-external 1 nssa-external 2 Configuration command Ip local policy route-map x DHCP option 82 , also known as DHCP relay agent information option ( Relay Agent Information the Option ), is the DHCP option in the packet, which numbered 82 . rfc3046 defined option 82 , the position of the option option 255 before the other option after. Neighbor 1.1.23.2 send-community Route-map PBR permit 20 match ip address 2 The following are five types of BGP packets and packet parsing: Metric problems 44 Experimental results: In ASBR when re-released many ways to modify the external LSA of TAG value. Port-channel Ethernet Channel of interfaces R1(config)# access-list 1 deny 172.16.32.0 R1(config)# access-list 1 permit any In the above figure, if both ends of the PC belong to vlan10d , if the fa0/23 port of SW1 will vlan10remove off, then the PC will definitely not be able to communicate. Router bgp 100 Ip address 192.168.10.254 255.255.255.0 Redistribute ospf 3 subnets route-map OSPF3to1 router ospf 2 As a result, the directly connected network segments of all devices are also connected. In AS345 , the routes are also available. This is for BGP . We did not pay attention in OSPF declared the R3 's s0 / 0 and R5 is S0 / 0 interface. A sends a data frame to B requesting to establish a reliable connection-oriented connection. Neighbor 10.1.23.3 remote-as 13 Rule example The configuration of R4 is as follows: Hello time root bridge sends configuration BPDU default interval 2 is S Configuration Example Difficult to resolve For ISL packages, MTU=1548 ( explained below ) Neighbor 10.1.23.2 route-map setCommu in Prefix list configuration Next Hop 5.5.5.5 32768 100 None The BGP election routeriID rule is the same as OSPF . *> 11.11.11.0/24 However, we found that R4 did not pass these two routes to R5 , which is because of the effect of IBGP 's horizontal splitting principle. According to the IBGP split horizon principle, a BGP router, if it learns BGP routes from its IBGP neighbors , will not be able to pass these BGP routes to other IBGP neighbors. The reason for setting this rule is that BGP anti-ring needs to resort to This fulfills the demand. Windows system), at the same time reply a Gratuitous ARP response to inform the peer that there is a duplicate IP address. 170 The same community VLAN can communicate with each other, but the community VLAN must be set up by SVI or router interface to communicate. Dynamic routing protocol port number or protocol number C 10.1.12.0 is directly connected, Serial0/0 BGP routing table entry for 172.16.0.0/16, version 4 The Layer 2 switch searches for VLAN configuration information based on the destination MAC address and VLAN ID of the frame, and determines from which port the frame is sent out. 100 i Produced when the network topology changes. Cisco Private Using the previous two commands, the aging time does not affect the static address entries that are statically configured. Of course, the sticky entries are not affected. These entries are never aging, but if you match the above For a command, the manually configured security address entry is also limited by the aging time. Send BPDU It is used to preferentially send packets with high priority when the switch is blocked. Select 10.1.25.2 as the next hop to the two network segments and load the route into the routing table. So why does R5 choose R2 ? There can only be one Isolate vlan in a primary VLAN. If the number exceeds xx , disconnect the BGP connection with the neighbor and reconnect after 2 minutes. None Of course, R3 should also be configured similarly. The longest match principle is the default route lookup method for CISCO IOS routers. When the router receives an IP packet, it performs bit-bit bit-by -bit lookup between the destination IP address of the packet and the entry in its local routing table until the longest matching entry is found. This is called the longest match. in principle. Set ip next-hop 10.1.1.2 10.2.2.2 interface fast 1/0 * i100.0.1.0/24 V2 uses multicast 224.0.0.9 Next Hop 1082 Vlan 10 DMZ-Link Bw can only configure single-hop EBGP neighbors on this router. R 1.1.1.0/24 is possibly down, Ip address 192.168.100.254 255.255.255.0 0.0.0.0 R1(config)# access-list 1 deny 192.168.3.0 R1(config)# access-list 1 permit any R1(config)# router ospf 1 Eliminate routing loops by horizontal splitting Per packet load-sharing is disabled IP unicast RPF check is disabled Inbound access list is not set Outbound access list is not set A valid entry in the database matches these ARP packets. Vlan 100 Detailed rules Configure Port Security Rate Limiter Max age Private-vlan mapping add 101,how to master ccnp route pdf free,102 Set ip next-hop verify-availability 10.1.1.2 10 track 1 Once the port-channel interface is established, it forms a logical interface, and subsequent configuration of the interface is in the port-channel. Part of static configuration, part of dynamic learning AAAA03 SNAP (fixed value) * i100.0.2.0/24 1 : Request message, requesting all or part of the routing information from the neighbor; Of course, you can also associate the route-map after re-issuing the command and set the tag in the route-map . Assuming the environment is like this, R1 re-releases A route into OSPF , then R2 will learn this OE2 in its own OSPF process 1 . Application 66 4.4.4.4 Configure this command. When routing, the router only compares all routing entries with the AS_CONFED_SEQ attribute. This command is used for federated routers, while weight and LP have higher priority than MED. Forward TYPE DHCP-SNOOPING VERSION 1 0 100 i We expect the effect of the above configuration is implemented R1 to 100.0.1.0 routing setting MED = 100 , 2.0 disposed MED = 200 is , while R2 to 100.0.2.0 disposed MED = 100 , 1.0 arranged MED to 100 , respectively, to the respective property The EBGP neighbor takes effect, so the MED attribute will be passed along the route in AS345 and finally arrive at R4 .  PVLAN considerations Ip community-list 11 permit 100:11 Neighbor 10.1.12.2 capability orf prefix-list receive On R4 , there are also redundant links to 100.0.1.0 and 2.0. Both R3 and R5 can reach the two network segments, and finally R4 selects R3 as the next hop to the two network segments. Because in the BGP routing principle, the route preference decision is compared to the BGP routerID , and the RouterID of R3 is smaller than R5 , so R4 is preferably R3 . The configuration of R2 is as follows: Let the CISCO router ignore the AS-path attribute during its decision making process 10.1.13.1 200 i Encapsulation Status Route filtering or execution strategy during redistribution *>i 3.3.3.3 0 100 0 100 i Y Router bgp 100 SW3 is small), so the interface connected to SW2 on SW4 wins and becomes RP . 246 1 i *version* 2 Switch B receives the TCN BPDU , sends a TCN ACK to confirm, and forwards the TCN BPDU to its own root port. ? Redistribute static subnets 1 Sh ip bgp neighbors {address} routes *> 11.11.11.0/24 Note: If it is an EIGRP environment, you need to implement unicast update, then the route update interface can not be PASSIVE (this is different from RIP ), directly use the neighbor command to specify the neighbor. If the interface is PASSIVE , even if the neighbor is manually specified , the EIGRP neighbor relationship cannot be established normally . Set native vlan on the trunk ORIGINATOR_ID and CLUSTER_LIST are optional non-transfer attributes used by route reflectors to prevent loops. See the " ORIGINATOR_ID and CLUSTER_LIST " BGP Properties section of this document for details . BGP neighbor : When two routers establish a TCP- based BGP connection with each other , they are called neighbors or peers. When the neighbors just establish a connection, they exchange all the candidate BGP routes, but after the initial route exchange, the incremental route update is usually sent only when the network information changes, and is not periodically updated. As a result, there is no problem with route delivery. Router ospf 1 Neighbor 4.4.4.4 route-map LP out BGP routing table entry for 11.11.11.0/24, version 2 TCN BPDU Overview Router bgp 345 MED : 150 Packets Situation 1 Vlan 10 Originator_ID Cluster_list Weight 200 i ! C 192.168.12.0/24 is directly connected, Serial0/0 1.0.0.0/24 is subnetted, 1 subnets S0 DCE In the above figure, if both ends of the PC belong to vlan10d , if the fa0/23 port of SW1 will vlan10remove off, then the PC will definitely not be able to communicate. R3 Routing entry for 100.100.100.0/24 Use network or redistribute manner IGP introducing route BGP when , MED will inherit IGP route Metric ( direct routes and static routes Metric is 0) The DHCP server got an illegal address and eventually the PC could not access the Internet. ------------------ 00:B0:64:04:09:99 Metric The switch receives the DHCP request , which inserts option82 information into the message (of course, you must do the corresponding configuration first). In the inserted information, the remote-ID suboption is the MAC of the switch ; the circuit-ID suboption is received. The interface ID to the DHCP request message . Verification Experiment 2 Impact of CLUSTER_LIST in BGP Routing Straight connector We restore the experimental environment to the basic configuration: BGP neighbor relationships are as follows S Due to the different port types, the switch processes the frames differently. The following is introduced according to different port types. 200 16 bits Access Switch SW1 is turned on DHCP Snooping , inserted Option82 ; After the basic BGP configuration is complete , R1 establishes an EBGP neighbor relationship with R3 , R2, and R5 . R3 establishes an IBGP neighbor relationship with R4 , R4, and R5 (using the LOOPBACK interface as the update source). After Port-Security is activated on the interface , the interface has certain security functions, 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 .