AnalysisEach route consists of the following six parts: The following routing entriesR 30.2.1.0[120/1] via 10.1.1.2,00:00:21,serial0/0" R"means that this route islearned from the" RIP"protocol;" 30.2.1.0"is the destination network; "[120/1]"is a rip the management distance of the protocol,1 means that the path to the target is only 1 hops; "via 10.1.1.2" means the IP address of thenext hop router that reac
CISCO PT Simulation Experiment (13) router RIP dynamic routing configurationExperimental Purpose :The configuration method of mastering RIP Dynamic route selection protocolMastering RIP routing descriptions in routing tablesFamiliar with the principle and process of Routing and Packet forwardingExperimental Background : The company is connected to the expor
Currently, there are many kinds of router protocols. Today, I will explain the RIP, HELLO, and EGP technologies in the vro protocol. I will share them with you here, hoping they will be useful to you. Technically, the IGP Router Protocol is similar to RIP and HELLO. The router uses this vro protocol to obtain information about other vrouters in the autonomous system to update its route table. Unlike the int
In the RIP routing protocol, slow convergence is a special feature. What slow convergence? Here we will introduce it in detail. In addition, we will explain how to use the RIP routing protocol for dial-up networks. I hope the summary in this article will be helpful for your learning.
Slow convergence
Split horizon update can be used to solve the slow convergence problem. when the range separation technology
I wrote in front that Tian Jie suddenly asked "What are the five anti-ring mechanisms of RIP ?"As it was suddenly attacked, I was quite impressed. First, paste the answer: "1. horizontal segmentation; 2. Maximum 16 hops; 3. Route poisoning; 4. Toxicity reversal; 5. Inhibition timer ." First, "what is
Loop?" WHAT) Let's look at a scenario: It explains the principle of RIP route update)
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In terms of routing, we need to understand the most basic knowledge. Here we will mainly explain the basic content of the RIP Protocol. Let's take a look at the process of RIP Protocol operation, that is, the router software processes the message input and output. The input and output processes are roughly described as follows:
(1) Input Processing: mainly refers to the processing of data packets received b
RIPVersion 1 does not support authentication. If version 2 is received and sent, the interface can perform RIP authentication. A key link determines a series of keys that can be used for interfaces. If the key link is not configured, the interface cannot perform authentication, or even the default authentication. Next let's take a look at the steps for configuring RIP authentication:
I. Experiment Topology
1. RIP (Route Information protocol) routing Information selection protocol RIP is a distance vector routing protocol, which has two versions: V1 and V2. It belongs to the characteristics of RIP1. use the number of hops as the metric value. The maximum number of hops is 15. groups with more than 15 hops will be discarded. use the local broadcast shared route information. The default broadcast period is 30 se
RIP configurationThe Rip[process-id] command is used to enable the RIP process. In this command, Process-id specifies the RIP process ID. If Process-id is not specified, the command uses 1 as the default process ID. VERSIONNBSP;2 enables RIPV2 to support extended capabilities, such as supporting VLSM, certification, an
The configuration of all router IP addresses in this experiment has been omitted.Configuration and show on the R1#router-id 1.1.1.1#log-adjacency-changes#area 1 Nssa#redistribute RIP Metric 2 subnets#network 12.12.12.1 0.0.0.0 Area 1#router RIP#ver 2NET 6.6.6.1#sh IP OS DatabaseOSPF Router with ID (1.1.1.1) (Process ID 1)Router Link States (area 1)Link ID ADV Router age seq# Checksum Link count1.1.1.1 1.1.1
received, B updates its route table and sets the route from B to D (through C) to infinite. This allows it to communicate with D through the B-D link. Once B updates its routeIt broadcasts new changes to the topology to other adjacent users, A and C.
Note that setting the route measurement to 16 for a RIP node invalidates a route.-16 is equivalent to infinite for RIP nodes.
Once A and C receive the update
Dynamic routing rip is used in a larger enterprise network when there are multiple routers.Dynamic routing is the process by which routers communicate with each other, transmit routing information, and update routing tables with received routing information.Dynamic routing Protocol Classification:Distance vector routing protocol chooses routes such as RIP IGRP based on hop countLink-state routing protocols
In the reality of the network, the network connection is linked to the link protocol, but the Protocol is not the same, can not directly connect to use, our common in the reality of the Protocol is the RIP protocol and OSPF protocol. Today's experiment is about using the two protocols together.
Experiment shows: This experiment is to do the OSPF routing and RIP routing connection, because the two are diffe
Both RIP v2 and OSPF Support automatic and manual summarization. The difference between the two is that manual Summary of the two can be summarized to any mask length, the Mask Length manually summarized by RIP cannot be lower than the main mask of the corresponding route entry!
For example, to summarize 172.16.1.1/24 172.16.2.1/24 172.16.3.1/24
Manual Summary of RIP
Rip horizontal segmentation is a mechanism used by the distance vector routing protocol to reduce possible routing loops, the horizontal split function prevents the router information received or learned by an excuse from being sent back from this interface.
Use (NO) debug IP rip to view the RIP Protocol update details
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RIP is a common dynamic routing protocol, which is rarely used in actual projects. Due to its inherent defects, the network size cannot be large. Let's talk about its basic configuration.
Topology:
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R1:
Int e0/0
Ip add 12.1.1.1 255.255.255.0
No sh
Int l0
Ip add 1.1.1.1 255.255.255.0
No sh
Int l1
Iop add 11.1.1.1 255.255.255.
Experiment on support for Discontinuous subnets in two versions of the RIP Protocol:
The following content is taken from my new recorded video course: http://edu.51cto.com/lesson/id-22481.html (currently can watch for free), full lab demonstration, repeated verification.
1. Continuous subnet and discontinuous Subnet
We often see that r12001 does not support discontinuous subnets and only supports continuous subnets. What is a continuous subnet and wha
We have analyzed and summarized the features of some RIP routing protocols. We found that some phenomena are not conducive to the formation and use of networks. Therefore, we propose two measures to improve the performance of the RIP routing protocol.
1. horizontal segmentation
In the "count to infinity" Phenomenon of the RIP routing protocol, the cause is that A
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