ccnp tshoot blueprint

ccnp tshoot blueprint

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 Note that this modification will take effect on all routes sent by R5 (the weight of all routes will become 100 ), and There is no match to a or c or t the end of the content Set ip next-hop verify-availability *> 100.0.2.0/24 Note that the as-path access-list is also implicitly rejecting all by default. 2 : RIP-2 . 8.1 Overview 91 For the same BGP connection, the passwords must be the same; different neighbors can set different passwords. After the authentication is configured, all data segments transmitted through the TCP connection between the peers are verified. Refcount 6 ? VLAN Interface 100.0.2.0 should choose R5 , check out the BGP table of R4 : Router bgp 100 1,10,20,30 Disable port DHCP is very familiar. For the DHCP client, the initial process is to find DHCP by sending a broadcast DHCP discovery message. In this experiment, we define AS345 as a federated AS , R3 , and R4 as member ASs , using 64512 as the AS number, R5 as a member AS , and 64513 as the AS number. At the same time, the penalty value is reduced at a certain rate. At the end of each half-life, the penalty value becomes half of the original value (if the route is no longer flipped) Therefore, when the IGP route network into BGP , the MED value inherits the metric value in the IGP protocol. The VTP protocol sends a VTP advertisement on the trunk link through the multicast address 0100-0CCC-CCCC . Experimental example: Called when republishing 100 i If R1 turns off auto-summary and network 1.1.1.0 , the declaration is unsuccessful because there is no mask for class declaration. / / Modify the default parameters When will BGP automatically summarize? Reviser The origin of the distance vector name is because the route is advertised in the form of a vector (distance, direction), where the distance is defined according to the metric, and the direction is defined according to the next hop router. / / Kill 11.0 release all details except 11.0 *Mar 1 00:11:47.891: ICMP: echo reply rcvd, src 2.2.2.2, dst 192.168.123.3 Y Router# sh ip bgp summary 10.1.23.0 is directly connected, Serial0/0 Port-security supports private vlan ^100$ Flag field LSB = TC MSB = TCA Passive-interface Dual two-way point of the route re-release We use ip ospf cost 100 on the F0/0 port of R4 to increase the interface cost , so the result is as follows: 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. Distance 130 2.2.2.2 0.0.0.0 1 Gratuitous ARP Re-routing release ( Redistributing Routing Protocols ) Ip address 192.168.10.254 255.255.255.0 [^act]$ The above interface loses the portfast and bpdufilter features immediately after receiving the BPDU , and becomes an ordinary spanning-tree interface. Vlans allowed and active in management domain Match community 11 BPDUguard Route Tag Length, or mask length. When paired with the above ACL , some students will even write R4 to R3 configured as Client , then it will be able to break through the limitation of split level, will learn from R3 route reflector to R5 , will learn from R5 route reflection of self- R3 . Let's look at R5 of the BGP table:  open Bibliography Preemption enabled, min delay 30 sec ^ BPDUFilter 3.3.3.3 After 10.30.0 is passed to R3 , since the RIP updated subnet and the R3 interface subnet belong to the same main class network, R3 receives the update, and uses the interface mask as the mask of the RIP route, so the R3 routing table The route loaded in is: 10.1.20.0/24 Lease expiration Trunking MAC address. Set the outgoing interface of the data Retaining the NEXT_HOP attribute outside the federation within the federation Each sequence number statement in the Route-map is equivalent to each row in the access control list. Top-down processing in the order of the serial number, once the matching sequence is found, it will not continue to search. The data is two-way. When considering traffic, pay attention to the round trip of traffic. Recognized as a self-determination attribute. LP is a local priority, only AS inside,ccnp tshoot blueprint, in IBGP between peer transfer, and will not be passed to other EBGP neighbors Hardware-address hardware-address type Router bgp 64512 As a result of the experiment, the PC could not get the address. Therefore, the role of the no-prepend keyword is: Do not prepend local-as to updates from ebgp peers . If you advertise the route to the EBGP neighbor of the primary AS , the secondary AS number is not attached . Three-layer exchange BGP routing table entry for 11.11.11.0/24, version 2 Aggregate-address 172.16.0.0 255.255.0.0 as-set summary-only SW1(config-if)# switchport trunk allowed vlan ? to sum up In this way, whether the method of re-publishing the static summary route or the method of distributing the list filtering route can ensure that the network is not interrupted in the event of a network failure, as follows: Metric 300 {100,200}, (aggregated by 300 3.3.3.3) Peer group The out- direction policy cannot be used separately for the member of the peer-group . It can only be used for the entire group . The in direction does not have this restriction. All neighbors in the same peer group must be all iBGP neighbors or all eBGP neighbors. When an AS receives a route to the same destination but passes through two ASs , it determines the local-pref value of the two routes. Information, so that ISP1 is hanging, so the data of the PC accessing the 100 network is switched to ISP2 , and the network is constantly Note that this is just a basic authentication feature, not encryption. Set extcommunity cost pre-bestpath 1 10 If the route is marked d , it means that the route is suppressed. If it is h , it means that the route has signs of flipping. ARP response packets can be sent directly without a request, which leaves a huge loophole for the attacker. Interface f0/1 R4 can learn from R1 and R2 of the 100.0 network routing, and the previous experimental results, we know, without any deployment strategy, R4 preferably RouterID small R3 as destined 100.0 segment BGPpeer , then Can we influence the routing preferences by controlling AS_PATH ? Next, we use route-map to make a policy on R1 , which takes effect on R3 and modifies the AS_PATH path attribute of the 100.0.1.0 route . Eventually, R4 goes to the 1.0 network to go to R2 , and goes to the 2.0 network and still goes to R1 .