ospf and eigrp configuration

4.EIGRP supports IPX and AppleTalk while OSPF not. Configure the Cisco Router R1 interfaces with the following commands. interface FastEthernet0/0 In our previous article, we gave detailed information about the OSPF protocol.In this article, we will communicate two different networks by activating the OSPF routing protocol on Routers in the GNS3 network simulator program. R1#configure terminal. 1. The Open Shortest Path First Protocol is an “open standard.” This means that it can be implemented on any platform, from any vendor or manufacturer. Figure 7-32 Flowchart for Troubleshooting EIGRP Redistribution Problem. OSPF implements a two-layer hierarchy: the backbone (area 0) and areas off of the backbone (areas 1– 65,535) To provide scalability OSPF supports two important concepts: autonomous systems and areas. In my example I will not be tuning the OSPF config. It Is a Cisco standard routing protocol. Router A and B have an OSPF neighbor relationship with BFD enabled. Configuration on Router R2. Some of the best features of OSPF, such as partial updates and neighbor discovery, are similarly put to use by EIGRP; however, EIGRP is easier to config-ure than OSPF. You can accomplish this using the network command. Note: In this case R1 is the ASBR for OSPF domain. router consumes lesser power when running on EIGRP than when it runs on OSPF. Solved examples with detailed answer description, explanation are given and it would be easy to understand. Sounds like you might need to do a bit more reading. Even though the router "runs" the routing protocol ie. EIGRP or OSPF, when you configure the routing, you are actually configuring an interface of the router for the routing protocol. EIGRP is an advanced routing protocol that relies on features commonly associated with link-state protocols. After this command, we will be under router configuration mode. Since you don't configure the router protocols at the interface level why would it matter? The following is the sample configuration on router R4-. To configure OSPF the first step is to create an OSPF routing instance. CCNA3 v7 – ENSA – Modules 1 – 2 OSPF Concepts and Configuration Exam Answers 01. Unlike EIGRP, the wildcard mask in OSPF is required. Let's setup EIGRP on our branch router and our HQ router. In this article, we will learn how to redistribute any routing protocol into OSPF.Below syntax is followed. OSPF Sham links is a logical inter-area link carried by the super backbone. We will start by configuring IP addressing and EIGRP on the two routers R1 and R2. The IPv4 and IPv6 versions of EIGRP are even closer to each other than the two corresponding versions of OSPF. For EIGRP Configuration, we will use Autonomous System Number. 1. RIP: Configuring RIPv2 Authentication is similar to configuring authentication for EIGRP , where you have to do three steps to enable authentication for it . The command has to be configured in router configuration mode for Route Redistribution in OSPF. CISCO(config)# router ospf 1 CISCO(config-router)# router-id 2.2.2.2 CISCO(config-router)# network 192.168.1.0 0.0.0.255 area 0 CISCO(config-router)# exit. Cisco's EIGRP protocol functions similar to the OSPF (Open Shortest Path First) protocol. NETWORK ANALYSIS Enter configuration … Since EIGRP sources data packets from the primary addresses, Cisco recommends that we configure all routers on a particular subnet with primary addresses that belong to the similar subnet. Switch(config-if)switchport trunk allow vlan 10,20,30 3.1.2 Routing protocols Routing protocol OSPF is used to communicate among the routers.The routing protocol is configured as below. a. Though IGRP/EIGRP use only bandwidth and delay by default to compute the metric, it is still necessary to specify all five metrics when redistributing. Lab 8 - OSPF and EIGRP Objective: To study OSPF and EIGRP Equipment: Packet Tracer Network Diagram: 10.10.10.2 255.255.255.0 1941 Router 10.10.20.2 255.255.255.0 10.10.10.1 255.255.255.0 10.10.20.1 255.255.255.0 1941 Routers 1941 Router2 Part A -OSPE: Configure the routers with the respective interface IP addresses Note that mask that is used is 255.255.255.0 so the wildcard mask … OSPF However, the capability of EIGRP and OSPF to learn the dynamic routes for the network is functionally equivalent, but there are several differences between them. To configure EIGRP, the first step is to create an EIGRP routing instance. We will use this number with “router eigrp” command. Unequal cost paths are the different paths to a destination network with different metric values.… EIGRP or OSPF, when you configure the routing, you are actually configuring an interface of the router for the routing protocol. Upon completing this task, you should be able to ping both loopback interface addresses of each others. Not only do they support VLSM and manual route summarization, they both keep backup routes with ospf going the extreme by keeping all available routes to a destination. Redistribution from OSPF (process 1) Router(config-router)#redistribute ospf 1. End with CNTL/Z. End with CNTL/Z. EIGRP (Enhanced Interior Gateway Routing Protocol), is a Cisco Proprietary Hybrid Routing Protocol. The configuration of EIGRP is similar to other Routing Protocols. In this example, we will configure EIGRP on Packet Tracer. With this EIGRP Config, we will see important EIGRP Commands on Cisco Packet Tracer. Configure all Loopback interfaces on each router. For this lab, the other router, R2, was preconfigured to support the connections. Hence EIGRP is a greener routing protocol when compared to OSPF. You want to configure EIGRP on the network but want to migrate slowly to EIGRP and don't want to configure redistribution. My guess :- Though EIGRP does not use metric as the hop count, it uses delay (and BW)) and delay is the sum of the delay of all the hops to the destination. I started creating a key-chain and trying to apply it. EIGRP-to-OSPF migration plan overview. Lab 2-3, EIGRP Summarization and Default Network Advertisement. The subnet command is to force ospf to redistribute all networks (classless networks and suppernets). Route Redistribution in OSPF: Redistribution is a technique using which the boundary routers connecting different routing domains can exchange and advertise routing information. Today I was working through the standard OSPF walk through with Khawar’s class and we went to start configuring OSPF Authentication. Define a Key chain , and make sure that the Key number matches between routers . DC1 & 2 OSPF configuration: Router OSPF 10. 5-10 EIGRP and OSPF Summary & Redistribution Routes freeccna 2013-12-13T16:22:38-06:00. The RID is chosen as the time the OSPF process is initialized. The tutorial below will focus on Routing Redistribution between OSPF and EIGRP and vice-versa. Then power on the Routers, and open the CLI prompts. Router#config terminal. Introduction of MPLS. Configure EIGRP authentication between both router. R1#conf t Enter configuration commands, one per line. by Shabeeribm. EIGRP and OSPF)[5], which has drawn similar attention to work in that direction. route-map EIGRP-TO-OSPF deny 30 (deny a access list) match ip address 3. route-map EIGRP-TO-OSPF 40 ( this is a match all) set metric 300 set tag 30. verify. R1 (config-router)#exit. Part 4: Configure Redistribution f rom OSPF v3 to EIGRP Recall that every protocol provides a seed metric at the time of redistribution. Output at router B . First, create a network topology for EIGRP as in the image below. And let's ensure that HQ has the ability to route to the 10.1.1.0/24 network and branch, and send traffic over to 172.16.1.0/24. Router 3 (EIGRP) EIGRP and OSPF - Section 1. B. router eigrp 10. Enter configuration commands, one per line. command. The OSPF network command uses a combination of network-address and wildcard-mask similar to that which can be used by EIGRP. Configuration Example: Route Redistribution for IPv6 Figure 4-4 shows the network topology for the configuration that follows, which demonstrates how to configure single point two-way basic redistribution between EIGRP and OSPF for IPv6, using the commands covered in this chapter. Enhanced Interior Gateway Routing Protocol (EIGRP) configuration in Router01. This is a lecture-based course using the Touch-IT Technology Smart board, … The router ospf command entered in global configuration mode with autonomous-system-number argument creates an OSPF routing instance. 1. Enter configuration commands, one per line. Now R2 (and R1) will use which route to go to 172.16.100.1? 37. We will add networks that run EIGRP one by one. Summary routes can be created at both levels of the network: At routers R21, R22 and R23 to summarize their respective sites into the DMVPN cloud. 1. RouterB(config-router)# default-metric 10000 1000 255 1 1500. Benefits of using EIGRP EIGRP routing protocol is capable of routing several different Layer 3 protocols using protocol-dependant modules (PDM). Next you will redistribute the EIGRP routes into OSPF and the OSPF routes into EIGRP. Figure 1 - Global Configuration mode. With which network type will OSPF … This is the Networking Questions and Answers section on " EIGRP and OSPF Section 1 " with explanation for various interview, competitive examination and entrance test. Note that you can configure and enable two routing protocols on a router (e.g both OSPF and EIGRP). EIGRP Configuration on Routers . Fig 4: Applications configuration . Cisco designed the new EIGRPv6 (EIGRP for IPv6) to be almost identical to EIGRPv4 (EIGRP for IPv4). This behavior stops both outgoing and incoming routing updates. OSPF stands For Open shortest path First. Once you are in the Router OSPF configuration sub-mode, configure the LAN network 172.16.1.16/28 to be included in the OSPF updates that are sent out of R1. R1#configure terminal. Use the highest IP address of any up/up non-loopback interface. Let’s configure our routers so that R2/R1 and R1/R3 also become OSPF neighbors: R2(config)# router ospf 1 R2(config-router)# network 192.168.12.0 0.0.0.255 area 0 R1(config)# router ospf 1 R1(config-router)# network 192.168.12.0 0.0.0.255 area 0 R1(config-router)# network 192.168.13.0 0.0.0.255 area 0 EIGRP is based on DUAL (Diffusing Update Algorithm) while OSPF uses Dijkstra's Shortest Path Algorithm with the major difference in how they calculate the shortest routing path. You will also change the metric type for EIGRP routes redistributed into OSPF. The metrics used Is hop. Unlike OSPF, we must specify five metrics when redistributing into EIGRP: bandwidth, delay, reliability, load, and MTU, respectively. Students will also be configuring RIPv2, EIGRP and OSPF and understand how to manipulate each routing protocols attributes to meet the requirements of the network. The metrics used are bandwidth and delay. As you know from Chapter 2, summary routes can be used to group together various contiguous networks into a single route. Passive-interface command is used in all routing protocols to disable sending updates out from a specific interface. Analysis of RIPv2, OSPF, EIGRP Configuration on router Using CISCO Packet tracer. End with CNTL/Z. Both are considered interior gateway protocols and work within a single routing domain. DMVPN Phase 1 and EIGRP: Configure spokes as a stubs. R2 (config-router)# exit. Step 2. BFD notifies the local OSPF process on each side that the BFD neighbor is no longer reachable. Advertise their connected routes. Delete the EIGRP configuration from the Cisco switch after services on the live network has been running stably for a certain period of time to enable all network devices to run OSPF only. Configuration is as simple as defining the OSPF process using the router ospf command and then identifying the networks that will participate in OSPF routing. You must configure Redistribution as well. The Pros and Cons of OSPF and EIGRP. It is also a complex protocol but can be configured and make it work easily in small and large networks. OSPF routers need to establish a neighbor relationship before exchanging routing updates. Let’s check the routing table of R2: So R2 still sends traffic to 172.16.100.1 via the serial link between R4 & R2. Since EIGRP and OSPF are global protocols I would think so. Configure R2 to redistribute routes between EIGRP & OSPF. Open Shortest Path First (OSPF) operating inside a distinct autonomous system. There are several routing protocols available today, but two of the most often compared are Open Shortest Path First (OSPF) and Enhanced Interior Gateway Routing Protocol (EIGRP). EIGRP stands for Enhanced Interior Gateway Routing Protocol. This output shows an IGRP/EIGRP router redistributing static, Open Shortest Path First (OSPF), RIP, and Intermediate System-to-Intermediate System (IS-IS) routes. RIP and IGRP also support the default-metric command. This is done with the ‘ router eigrp autonomous-system-number ' command; this is shown in Figure 2. Before we start our configuration of EIGRP and OSPF over DMVPN, we need to understand few things about EIGRP and OSPF. Use the highest IP address of any up/up loopback interface. One is ospf and another is eigrp. While R2’s s1/2 is running in OSPF area 24, R3’s f2/0 interface is running in OSPF area 34. Configure EIGRP AS 10 for Company A. Configure OSPF 10 for Company B. Configure OSPF router ID’s for Company B. 2. Q1. Ospf and eigrp redistribution configuration pdf Mukmin C, Antoni D, Surya Negara E (2018) Redistribution of the comparison path on the dynamic routing protocol (EIGRP in OSPF and EIGRP in IS-IS). Though IGRP/EIGRP use only bandwidth and delay by default to compute the metric, it is still necessary to specify all five metrics when redistributing. To configure EIGRP only on interface Fa0/0, the network 10.0.0.0 0.0.0.255 command can be used. RIP is a distance vector protocol. Enhanced Interior Gateway Routing Protocol (EIGRP) is an hybrid routing protocol possessing characteristics of both distance-vector and and link-state routing protocols. However, this is not enough to exchange information between the two routing protocols. Lab 2-4, EIGRP Frame Relay Hub-and-Spoke: Router Used as a Frame Relay Switch. This part explains these parameters in detail with examples. The R1 dead timer expires between hello packets from R2. Router(config-router)#summary-address 172.16.32.0 255.255.224.0. The overall plan is to add an OSPF process on the Cisco routers that redistributes connected, static, and EIGRP learned routes after adding a tag value to these routes. EIGRP and OSPF. Also read: Best Network Mapping Tools & Software for 2021 OSPF adjacency is established across the sham link. EIGRP routers or switches send Hello packets to each other to form neighbors. This is usually required by the routing protocol as OSPF and EIGRP. # View the OSPF routing table of the Huawei switch. Routers don’t form EIGRP … Here is the order or precedence: Manually configured RID in the router-id router subcommand. However, with OSPF ip ospf dead-interval… Network X.X.X.X X.X.X.X area 0 #where the Xs represent the P2P network and wildcard mask between your MX and L3 This is useful for reducing the size of routing table in the network. Synchronous serial links, no matter what the clock rate of the physical link is, the bandwidth always defaults to 1544 Kbps. OSPF Configuration Step by Step Guide. After entering the EIGRP Configuration Mode, a network administrator's most common task is to specify which networks EIGRP will advertise. Your company is running IGRP using an AS of 10. Let’s confirm on IOSV4 that he prefers network 10.0.4.0/30 However the command behavior varies from o­ne protocol to another. EIGRP (Enhanced Interior Gateway Routing Protocol), is a Cisco Proprietary Hybrid Routing Protocol. The configuration of EIGRP is similar to other Routing Protocols. In this example, we will configure EIGRP on Packet Tracer with Cisco Routers.. With this EIGRP Config, we will learn important Cisco EIGRP Commands on Cisco Packet Tracer. INTRODUCTION EIGRP is a Cisco proprietary distance-vector protocol based Example 7-57 shows the configuration for Router A. Answer: EIGRP does support secondary address. If you’ve completed Lab 10-2 – Configuring Mutual OSPF and RIP Redistribution and Lab 10-3 – Configuring Mutual OSPF and EIGRP Redistribution then you should be no stranger to mutual route redistribution.. IGRP and EIGRP. OSPF doesn’t have problems like Stuck-In-Active. Configuring OSPF Domain ID an enhanced distance vector protocol that relies on the Diffused Update Algorithm (DUAL) to calculate the shortest path to a destination within a network. # Configure basic OSPF functions. To restore the default value, use the no form of this command. The command to enable OSPF on a per interface basis is “ipv6 ospf 1 area 0” in the interface configuration mode in order to enable OSPF process number 1 in area 0 for example. Below is the configuration I used. RIP is configured between R1-R4 and OSPF configured between R3-R4. assign ip address on both ethernet and serial port,assign bandwith,clock rate on router R2. It is the first step in configuring OSPF on a router as done here on R1: R1>enable. This tutorial explains how to configure OSPF Routing protocol step by step with practical example in packet tracer. Note that this behavior is different from EIGRP. Open Shortest Path First (OSPF) Routing Information Protocol (RIP) Intermediate System To Intermediate System (IS-IS) EIGRP, Cisco's Proprietary Enhanced Interior Gateway Routing Protocol. R3(config)# EIGRP sumariza en la interfaz y OSPF lo hace desde ospfStep 6: Configure mutual redistribution between OSPF and EIGRP.Notice that R2 is the only router with knowledge of all routes (EIGRP and OSPF) in the topology at this point, because it is involved with both routing protocols. IMPLEMENTATION This work is divided into three scenarios. Why is EIGRP called Distance Vector? EIGRP (Enhanced Interior Gateway Routing Protocol) is an enhanced distance-vector protocol. Verification. To note I used the same color I have previously for IPSec VPN tunnels, however that color is more just one of the few colors not reserved for protocols (as I generally use blue for OSPF, red for RIP, and orange for EIGRP), so this time green is for VRF-Lite.. Solved Objective Questions and Answers for EIGRP and OSPF 1. In this tutorial we will learn how to configure Route Redistribution between OSPF and EIGRP using Cisco Packet Tracer.I have made a step wise tutorial showing redistribution process between EIGRP and OSPF and also performed Network connection Testing after Configuration.If you are preparing for CCNP Certification this lab will help you score and learn Route distribution Questions. First scenario involves the analysis of the various routing protocols like EIGRP, OSPF and BGP. EIGRP Configuration Step by Step Guide. Example 5-18. Neighbor Verification. show ip route ospf. In this case we need to configure like this: This video will show you how to configure two groups of router which each side configured with different routing protocol. Just a basic query, which i would like to get it clarified. Figure 7-33 Network Susceptible to EIGRP Redistribution Problems. Preliminary configuration: Configure all interfaces and the Frame Relay connection. Activate OSPF authentication between R4 and R3. 13-4 EIGRP for IPv6. Basics : EIGRP & OSPF. Create a loopback interface on R4 & R2, then configure GRE Tunnel between R4 and R2. However, this is not enough to exchange information between the two routing protocols. R3(config-router)# network 192.168.8.0 0.0.3.255 area 20. b. Verify that your adjacencies come up with the . Step 3. Passive Interface (RIP,OSPF and EIGRP) explained with interview questions. 2.It is quite easy to configure EIGRP while OSPF configuration is little bit Complicated. Lab 2-2, EIGRP Load Balancing. In this Sim you need to redistribute OSPF into EIGRP so that they can communicate with each other. Open Shortest Path First (OSPF) is an interior gateway routing protocol developed for IP networks based on the shortest path first or link-state algorithm originated by Edgars Djikstra. <1-65535> Process ID. Ospf and eigrp concepts and configuration 1. This is shown in Figure 2. Router R1 Configuration: R1#configure terminal. The domain ID has to be common for all PE routers for that VPN instance. Verify the configuration. If a new router with a higher priority is added to this network, it will become the DR. EIGRP allows any router, anywhere in the network to create a summary route and just like with OSPF, a summary route will block advertisement of the component subnets. Ospf and Eigrp are without doubt, two of the best internal routing protocols out there. 2. Notice that R2 is the only router with knowledge of all routes (EIGRP and OSPF) in the topology at this point, because it is involved with both routing protocols. Explanation. Different answer on EIGRP and OSPF convergence time: 1. Note:this would reset and renogotiate OSPF . Router (config)#hostname R2. Kumar J. et al. Use route metric as below: EIGRP to OSPF : Metric=>100, route type=>E1. EIGRPv6 has to be enabled on all routers in the network just like EIGRPv4. A Sham links is required only between two VPN sites that belong to the same area and have a backdoor link for backup purposes. In OSPF the passive-interface has a similar behavior to EIGRP. Features. Enter configuration commands, one per line. Redistribution routes from EIGRP into OSPF [2]: Hostname(config)# router eigrp Hostname(config-router)# redistribute eigrp subnets Here, AS means autonomous-system. OSPF to EIGRP : Bandwidth=>1000Kbps, Delay=>1000, Realibility=>255, Load=>1, MTU=>1500. OSPF has 3 types of authentication It allows a router to use an autonomous system to share information it holds about the network and calculate the shortest path to a network. This lab will discuss and demonstrate the configuration and verification of mutual OSPF and EIGRP … Today's post will discuss configuring authentication on routers for Routing Protocols Authentication . OSPF has it's own rules (area 0, filtering/summarizing only on abrs, etc.) R4 (config-router)# redistribute ospf 1 metric 10000 100 255 1 1500. OSPF EIGRP; Scalability: 2 tier hierarchy, less scalable in general: Support many tiers and scalable: Working on Full Mesh: Works well with mesh group feature but this increases configuration complexity: Works very poorly, and there is no mesh group: Working on a Ring Topology: Ring is a hard topology for all protocols but OSPF is better than EIGRP What command would allow you to migrate over time to EIGRP without configuring redistribution? R2 (config)#interface se0/0/0. The router eigrp command entered in global configuration mode with autonomous-system-number argument creates an EIGRP routing instance. As the title says, this is an introductory tutorial in order to learn the basics … A. router eigrp 11. OPNET. It reduces the workload that the router has to deal with as well as the volume of data which is being transmitted. Lab 1-1, Tcl Script Reference and Demonstration. The configuration for each router must be something like the following code: R1#conf t. Enter configuration commands, one per line. Enable EIGRP to advertise to advertise R4 & R2 loopback address over the tunnel. The OSPF RID is determined the same as EIGRP. OSPF is an internal routing protocol. End with CNTL/Z. IGRP is a distance vector protocol. RouterB(config)# router eigrp 15. Configure OSPF on R1, R2, R3 & R4. Hub routes packet to Spoke2 according to routing table via tunnel. EIGRP has the fastest router convergence among the three protocols we are testing. Figure 2 - Creating an OSPF router instance. As far as redistributing the routes I don't remember the commands (I just got my CCNA 2 weeks ago so I am still quite a newbie) would it be router ospf 1 redistribute eigrp 1 and vice versa? Notice the “redistribute eigrp 1 subnets” command on R3’s configuration. config t router ospf 1 redistribute eigrp 100 subnets route-map EIGRP-to-OSPF – Redistribution OSPF to EIGRP. You may also like: How to redistribute static routes into eigrp using Cisco Packet Tracer. Keywords: routing protocol, EIGRP, OSPF, RIP, packet tracer, OPNET . Connect to Router01 console and use the following IOS commands to configure Enhanced Interior Gateway Routing Protocol (EIGRP) in Router01. CISCO(config)# no router eigrp 1 CISCO(config)# exit. show ip ospf neighbor. CCNA3 v7 – ENSA – Modules 1 – 2 OSPF Concepts and Configuration Exam Answers 09. Govanet1(config)#router rip. Routing Protocol Authentication (EIGRP) and configuration Routing Protocol Authentication (EIGRP) A router authenticates the source of each routing update packet that it receives. OSPF maintains information about all the networks and running routers in its area. Each time there is a change within the area, all routers need to re-sync their database and then run SPF again. This process makes it more CPU intensive. EIGRP, on the other hand, has triggered and incremental updates. The tutorial below will focus on Routing Redistribution between OSPF and EIGRP and vice- versa. I am going to start using this to help me analyze and remember weak areas. It is used to share the information from one router to the neighbour routers if they exist in the same region. Question 5. (While primarily used inside a single company, it can span multiple sites.) EIGRP Is derived from Integrated Gateway Routing Protocol. To configure OSPF on vEdge routers using vManage templates: Create an OSPF feature template to configure OSPF parameters, as described in this article. So I wanted to pull quick from the last lab quickly the two pieces of setup already done on the equipment from the last post: IV. To visualize BFD, there is a great example of a BFD failure scenario in the NX-OS Interface Configuration Guide . the Open Shortest Path First (OSPF), Enhanced Interior Gateway Routing Protocol (EIGRP) and ... B. Configuring Mutual OSPF & EIGRP Redistribution Mututal redistribution between OSPF and EIGRP is uncommon however it is used mostly in company acquisitions or band aiding poorly architected networks. Govanet1(config-router)#redistribute eigrp 25 metric 2 . Redistribution Configuration Syntax and Examples. We will evaluate the performance of EIGRP, OSPF, and RIP based on of network convergence, Ethernet delay, security, and bandwidth requirement, etc. Cisco routers or switches use Mulitcast IP (224.0.0.10) and multicast MAC (01:00:5e:00:00:0a) to send EIGRP hello packets to … The reason being the administrative-distance of EIGRP internal routes is 90, but the AD of EIGRP external routes is 170.

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