eigrp for dummies

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Explanation of Javascript_13 _ execution model

Function execution environmentSimple code:Copy codeThe Code is as follows:Function say (msg, other ){Var str = "nobody say :";This. name = 'dummies ';Function method () {}; // var method = function (){};Alert (str + msg );}Say ('Hello World ');Alert (name); // dummies motto When you call the say method, the first step is to create its execution environment. During the creation of the execution environment,

Network Fundamentals-Static routing + dynamic routing

Description: After the use of IP to identify each network node, if the two nodes separated by multiple network nodes to communicate, need to "man-in-the-middle" strings, the step by step notice a node data, to go to the end of the node step-by-step how to go.Static routing: Manually configure static routing information that can be forwarded using a leased line interface or a next-hop IP address based on the routing information when forwarding packets with matching destination addresses.Advantage

Packet Tracer 5.0 Experiment (VII) router one-arm routing configuration

192.168.1.1 255.255.255.0r1 (config-subif) #exitR1 (config) #interface fa0/0.2% Link-5-changed:interface fastethernet0/0.2, CHANGED State to Up%lineproto-5-updown:line protocol on Interface Fastether net0/0.2, changed state to UpR1 (config-subif) #encapsulation dot1q 3r1 (config-subif) #ip address 192.168.2.1 255.255.255.0R1 (config-subif) #R1 #%sys-5-config_i:configured from the console by consoleR1#show IP routeCODES:C-connected, s-static, I-igrp, R-rip, M-mobile, B-BGPD-

CCNA Study Notes (vi)--routing Protocol (OSPF)

Above we have realized that RIP (routing Information Protocol) EIGRP (Enhanced Gateway Routing protocol), we come to know the following routing protocol OSPF (Open Shortest Path precedence protocol) also called it as an interface-sensitive routing protocol.OSPF Link State Protocol(Open short Path first) Open Shortest route priority protocolLet's take a look at the OSPF protocol at 1.1 o ' walk slowly. 1, the OSPF routing protocol is a typical link sta

[Lab7] Acl

;padding-top:0px;padding-left:0px;margin:0px;border-left:0px;padding-right:0px; "border=" 0 "alt = "clip_image002" src= "http://s3.51cto.com/wyfs02/M01/6F/CC/wKioL1WozZuRWPwnAAC-OO4uscc148.jpg" height= "225"/>This experiment rejects the PC2 network segment to access the router R2, while only allowing the host PC3 network segment to access the router R2 telnetService. The entire network configuration EIGRP guarantees the connectivity of the IP.Look at

GRE over IPSEC configuration

destination 2.2.2.2 //Specify the destination of the tunnel (public IP)RouterA (config-if) # tunnel mode GRE IP //Configure tunnel encapsulation pattern, where the IP-based GRE mode encapsulation is usedRouterA (config) # IP route 10.1.3.0 255.255.255.0 10.1.2.2 //write a static route, the target network segment is to the far end of the intranet address, the next hop is the address of the Terminal tunnel interface, So that when we go to the remote intranet, we can take the tunnel,can also play

Cisco Packer Trace's three-tier switch + router sharing internet

-router) #net 192.168.5.0Router (config-router) #default-information originate// its role is to assign a default route to our three-tier router out! Router (Config-router) #endRouter#show IP routeCodes:l-Local, c-connected, S-static, R-rip, M-mobile, B-BGPD-EIGRP, Ex-eigrp External, O-OSPF, IA-OSPF Inter areaN1-OSPF NSSA External Type 1, N2-OSPF NSSA external type 2E1-OSPF external Type 1, E2-OSPF external

VNX for file network debugging tips--vlan Error

-periodic downloaded static route, D-EIGRP, ex-eigrp External, E1-OSPF external type 1 route, E2-OSPF external Type 2 route, N1-OSPF nssa external type 1 route, N2-OSPF Nssa External Type 2 route Gateway of last resort are 10.119.254.240 to network 10.140.0.0 O E2 10.110.0.0 [160/5] via 10.119.254.6, 0:01:00, Ethernet2 E 10.67.10.0 [200/128] via 10.119.254.244, 0:02:22, Ethernet2 O E2 10.68.132.0 [16

Detailed explanation of OSPF OE2 and OE1 external routes

External routes that are redistributed from the OSPF ASBR will generate two types of routes for OE1 and OE2 to be delivered in the OSPF area. The type of Cisco default external route is OE2. The default metric=20 is not cumulative based on the cost of the link. The OE1 must be manually specified before it can be passed within the OSPF area. In this document will be OE1 and OE2 through the experiment in detail, and then see where the difference, and finally there is a OE2 routing problem is for

A method of realizing Dmvpn two-center main standby Path

I. DMVPN Tan Yun Double Center A. By modifying the OSPF cost value of the two-center tunnel interface, only the routers behind the center will be routed to spoke B. By modifying the OSPF cost values for the physical interface behind the two centers, you can influence spoke select different hubs to the network behind the center C. Because there is only one virtual tunnel, it is not possible to implement a different hub by adjusting the OSPF cost of the spoke tunnel interface to the network beh

CCNP Routing Service Summary

, EIGRP, and OSPF) support VLSM and disconnected subnets and do not have to be automatically aggregated for network boundaries. The features and configuration of the 13.RIPV1 and RIPv2 are as follows: A. Global configuration command router rip enable RIP B. To accept and send only the groupings of a RIP version, use the Router configuration command version {1|2}. C. Router configuration commands network Network-number to enable RIP on the pretext

RIP configuration perfection strategy

debug RIP Protocol information. Use the sh ip route command to display the route tables of each vro. testBJ#sh ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-I

Campus Network formation (based on Packet tracer)

) #net 192.10.6.0Switch (config-router) #net 192.10.10.0Switch (Config-router) #exit( 2 ) Firewall Router Configurationrouter>enRouter#conf TRouter (config) #int fa 0/0Router (config-if) #ip add 192.10.10.1 255.255.255.0Router (config-if) #no shutRouter (config-if) #exitRouter (config) # int s1/0Router (config-if) #ip add 202.1.1.1 255.255.255.0Router (config-if) #no shutRouter (config-if) #exitRouter (config) #router ripRouter (config-router) #ver 2Router (config-router) #no auRouter (config-ro

Study Progress Chart

Week number Professional Learning Goals Professional Learning Time New Code Volume Blog post Volume Learning in the Humanities Knowledge and Skills Summary 7 Learn the loop queue and the application of the queue.Configure dynamic routes and static routes, and deploy the EIGRP protocol.Write purely code to design a form page. 3 120 1 Reading "Psychology and Life", a lot of psychologi

Router Development (ii)--How routers work

value, and the smaller the value, the higher the priority. Default administrative distance value for each routing protocol :Figure The default management distance for each routing protocolAssuming that the router runs EIGRP, OSPF, RIP, IGRP Four routing protocols, all of which are routed to the network 192.168.24.0/24, only EIGRP (internal) can install its route into the routing table because it has the l

Routing Basics and Static routing

all networks in the connected network, and to ensure that all routers have the same routing table protocol. such as RIP, EIGRP, OSPF protocol. The dynamic routing protocol constantly updates the knowledge of the network. PS: This definition is not rigorous, in order to facilitate understanding, for the time being written. Note: The routing table for each router is not necessarily the same. In fact, the routing protocol is a kind of soft

CCNA Experiment 24 Security of routing updates

CCNA Experiment 24 Security of routing updatesEnvironment: Windows XP , GNS3.0.7.2Objective:Learn how to pass MD5 authentication and passive port protection routing updates, Note that both methods are in EIGRP ,OSPF, RIP, IGRP can be used in all routing protocols. DescriptionMD5 Certification : to prevent invalid routing updates from potentially threatening and damaging the network through routing update authentication between neighbor routers. Pas

36. The route-map of the Redistribution configuration experiment

"alt=" Wkiol1zhmefrzooaaabkhj9twla136.png "/>3. Experiment ConfigurationR1 ConfigurationInterface serial0/0IP address 12.1.1.1 255.255.255.0Interface SERIAL0/1IP address 13.1.1.1 255.255.255.0Interface SERIAL0/2IP address 14.1.1.1 255.255.255.0Router EIGRP 90Redistribute OSPF metric 1500 100 255 1 1500Network 14.1.1.0 0.0.0.255No auto-summaryrouter OSPF 110Router-id 1.1.1.1Log-adjacency-changesRedistribute RIP subnetsNetwork 13.1.1.0 0.0.0.255 Area 0

Cisco Troubleshooting Notes

received on expected port: possible physical failure, spanning tree problemThe MAC address is not registered in the MAC Address table:Show Mac-address-tableShow VLANShow interface TrunkShow Interface SwitchportShow platform ForwardEtherChannel Fault Point1. Multiple physical interface configurations that belong to the same channel are inconsistent2. Inconsistent port configuration on EtherChannel link-to-end3, EtherChannel bound link traffic imbalanceTwo-tier port, three-layer interfaceA routed

OSPF of Cisco

-router) #network 10.1.1.4 0.0.0.3 Area 1R4 (config-router) #network 10.1.1.12 0.0.0.3 Area 1R4 (config-router) #network 172.16.1.0 0.0.0.255 Area 1Displays routing protocol information for the router:R1#sh IP ProtocolsRouting Protocol is "OSPF 100"Outgoing update filter list for all interfaces are not setIncoming Update filter list for all interfaces are not setRouter ID 1.1.1.1It is a area border routerNumber of areas in this router is 2. 2 Normal 0 stub 0 NssaMaximum Path:4Routing for Network

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