This backup virtual router hsrp provides users at the access layer with uninterrupted service to the network if the primary gateway becomes inaccessible. Dear all, i recently do a testing on the hsrp for router redundancy. Im amazed at how the approach of the ccna certification has changed since the time i. In this article, we cover the basics of this technology, with practical examples of configurations. I used two cisco 3560 switches and gns3 to perform my labs. Hot standby routing protocol or hsrp, is a cisco proprietary protocol that allows two or more routers to work together to represent a single ip address for a particular network. Learn how to set up standby groups, configure timers. It does, but both softwares are very particular about what they require for it to work. In this course, explore the infrastructure services offered by cisco, and prepare for the infrastructure services portion. In this course, explore the infrastructure services offered by cisco, and prepare for the infrastructure services portion of the interconnecting cisco networking devices part 2 icnd2 examone of two qualifying exams for the ccna routing and switching certification. Using ciscos hot standby routing protocol hsrp you can configure a router to be an automatic backup gateway without having to change all of your network clients default gateways, by reconfiguring your dhcp server, and continue reading hsrp hot standby routing protocol packet. You will configure hsrp on routers r1 and r3, which serve as the default gateways for the hosts on lan 1 and lan 2.
Siwtch a is active state of hsrp and switch b is in standby state. The main disadvantage of hsrp and vrrp is that only one gateway is elected to be the active gateway hlbp used to forward traffic whilst the rest are unused until the. Implementing high availability with hsrp an article by fabio semperboni tutorial the hot standby router protocol hsrp is a cisco proprietary firsthop redundancy protocol fhrp designed to allow for transparent failover of the firsthop ip router, and has been described in detail in rfc 2281. In this tutorial we will learn what is hsrp and the need of hsrp in a. Ensure cisco router redundancy with hsrp techrepublic. Cisco proprietary protocol defined on rfc 2281 informational type vrrp virtual router redundancy protocol. High availability vrrp, hsrp, glbp free ccna study guide. With hsrp, two or more devices support a virtual router with a fictitious mac address and unique ip address. Free online tutorials to master networking, system administration and network security. In hsrp, two or more routers gives an illusion of a virtual router.
Hsrp, as well as virtual route redundancy protocol vrrp are considered highavailability network services that allow for almost immediate fail over to a secondary. Hot standby router protocol hsrp is an automatic backup system for cisco systems. Ccna training hot standby router protocol hsrp tutorial. In this packet tracer activity, you will configure cisco s hot standby router protocol hsrp, which is an fhrp. Tutorial hsrp configuration on cisco switch first, you need to access the console of your cisco switch. For example, you might configure an interface on switch 1 as an active router and one on switch 2 as a standby router and also configure another. Ccna training hot standby router protocol hsrp tutorial 9tut. Hsrp basics pdf tutorial of hsrp basic configuration. If the ports are operating in full duplex, the maximum theoretical bandwidth supported is as follows. Version 1 of the protocol was described in rfc 2281 in 1998. Hsrp provides firsthop routing redundancy for ip hosts on ethernet networks configured with a default router ip address. This means that for multiple routers inside a network, there is a framework readily established by hsrp to make a default gateway, in the event that the main gateway inadvertently becomes inaccessible. Hsrp hot standby router protocol is the cisco proprietary protocol for providing redundancy in router networks.
The protocol establishes an association between gateways in order to achieve default gateway failover if the primary gateway becomes. The main purpose of the above protocols is to provide redundancy to. It uses a router in active mode primary and another in standby mode secondary. Hot standby router protocol features and functionality cisco. Hsrp hot standby routing protocol packet tracer activity. Hot standby router protocol hsrp one picture summary hot standby router protocol. The problem is, i can achive router redundancy by using the ospf and eigrp as the routing protocol. So you are moving from a small network to a medium network. Configuring hsrp in cisco 6500 switches this document provides a sample configuration for hsrp in cisco 6500 series switches for high availability and for vlan redundancy. Because of the nature of the hot standby router protocol hsrp, specific network.
Difference between hsrp and vrrp difference between. Tutorial hsrp configuration on cisco switch step by step. In our example, we are going to use an opensource software named putty and a computer running windows. Hsrp can track both interface and objects, but vrrp can only track objects. Hsrp provides routing redundancy for routing ip traffic without being dependent on the. First hop redundancy protocols configuration guide, cisco ios xe release. The following example uses the following configuration, with the default decrement value of 10. Host standby router protocol hsrp is a ciscoproprietary redundancy protocol configured on cisco router inform of a virtual router as a backup for routing access. How to configure gateway redundancy with hsrp in ios.
The main disadvantage of hsrp and vrrp is that only one gateway is elected to be the active gateway and used to forward traffic whilst the rest are. In the above example we have two cisco 65 switches with sup 720 with ios 12. Hsrp v2 is now supported through the standby version 2 ios command. Hsrp stands for hot standby router protocol, its a firsthop redundancy protocol that allows a transparent failover of the firsthop ip router. In the configuration, i use a static route for the routing instated of using eigrp or ospf for the routing protocol. Etherchannel supports fast, gigabit, and 10 gigabit ethernet ports. An interface enters a learn state if it does not know the hsrp virtual ip. For all packet tracer examples and files, you can check packet tracer labs page. Lots of people have said that hsrp does not work in either gns3 or iou. Hot standby router protocol hsrp is a cisco proprietary protocol, which provides redundancy for a local subnet. Cisco tutorials learn cisco for free free course site earning the cisco ccna routing and switching certification is a testament to your understanding of networking technologies. Hsrp is a virtual gateway protocol for cisco devices, in this lesson you will learn how it works and how to configure it.
Cisco hsrp tutorial and demonstration keith barker. Rfc 2281 cisco hot standby router protocol hsrp ietf tools. Cisco developed the proprietary hot standby router protocol hsrp to allow multiple. In this topology, 2 cisco catalyst 295024 switches and 6 pcs are used. Hsrp is used in a group of routers for selecting an active router and a standby. Hosts on the network are configured with a shared ip address as their default gateway. Hsrp uses a virtual mac and ip address, which used in the event of a failure in any of the configured routers. This is accomplished by assigning a virtual ip and mac address to all routers participating in an hsrp group. Free networking tutorials, system administration tutorials. Understanding and troubleshooting hsrp problems in. In this article we will discuss the similarities and differences between the 3 first hop redundancy protocols supported by cisco devices. If you are not sure about hsrp and glbp, please read our hsrp tutorial and glbp tutorial. Rfc 2281 cisco hsrp march 1998 0 initial 1 learn 2 listen 4 speak 8.
Earning the cisco ccna routing and switching certification is a testament to your understanding of networking technologies. Belajar konfigurasi basic hsrp hot standby router protocol topology yang digunakan adalah sebagai berikut. Hsrp and vrrp operate in activeactive mode from data plane standpoint, as opposed to classical activestandby implementation with stp based network. Hsrp allows you to configure two or more routers as standby routers and only a single router as active router at a time.
Hsrp, as well as virtual route redundancy protocol. Hsrp configuration for multiple vlan on cisco 4506. Implementing high availability with hsrp ciscozine. A maximum of 8 active ports are supported in a single etherchannel. Glbp tutorial pdf cisco howto tutorials the gateway load balancing protocol glbp feature was integrated into cisco ios software release 15t. Hot standbyroutingprotocol virtualrouterredundancyprotocol. Hot standby router protocol features and functionality document id. Cisco tutorials learn cisco for free free course site. Routers within the same hsrp group must be assigned the same group. In this example, we will use two routers as member of hsrp group. Switchover may be a manual operation or may be induced by a. Ios commands available in the cisco packet tracer and a sample configuration using two cisco 3560 layer 3 switches. You can download the cisco packet tracer example with. Hot standby router protocol hsrp one picture summary.
Hsrp hot standby routing protocol in packet tracer 6. Belajar konfigurasi basic hsrp hot standby router protocol. We will configure each router with unique physical ip but they must have the same group number and virtual ip. Ensure cisco router redundancy with hsrp by david davis ccie in networking on april 20, 2006, 12. Cisco developed the proprietary hot standby router protocol hsrp to allow multiple routers or multilayer switches to masquerade as a single gateway.
Configuring hsrp, vrrp, and glbp this chapter describes how to use hot standby router protocol hsrp, virtual router redundancy protocol vrrp, and the gateway load balancing pr otocol glpb on the cisco me 3400e ethernet access switch. In this tutorial i demonstrate how to configure the cisco hsrp hot standby routing protocol to create an automatic backup gateway ro. In this post, we will look at how to configure hsrp on cisco iou and on gns3. Hot standby router protocol, hsrp, is a cisco proprietary protocol to make multiple routers or. Fhrp or first hop redundancy protocols routerfreak. In this post, we will learn how to configure hsrp in cisco ios router.
Which hsrp router requires that i configure preempt. First hop redundancy protocols configuration guide, cisco ios xe release 3s. The standard router redundancy protocol which is used by other vendors is vrrp virtual router redundancy protocol, however cisco has created its own proprietary protocol hsrp which works very well on cisco routers. Or even more crucial, it matters if your clients default gateway can get them to external networks such as the internet. These are hot standby router protocol hsrp, virtual router redundancy protocol vrrp and gateway load balancing protocol glbp. Hsrp overview if your gateway goes down it is a good idea to have a backup that takes over immediately. Hsrp hot standby router protocol is a cisco proprietary fhrp firsthop redundancy protocol that is available in two versions. For theory, i used cisco configuration guides and the cisco press official certification guide. With a continue reading how to configure gateway redundancy with hsrp in ios. Ciscos implementation of port aggregation is called etherchannel. Now it matters if the path from your clients to your default gateway is down. Developed by cisco, hsrp, or hot standby router protocol, is a propriety redundancy protocol that establishes an errorfree default gateway.