To simulate classful routing protocols using OMNeT++, we can configure a network environment utilizing protocols, which not support subnetting, like Routing Information Protocol version 1 (RIPv1) and Interior Gateway Routing Protocol (IGRP). Classful protocols suppose fixed IP address classes (A, B, C) and do not carry subnet mask data with routing updates. We will teach you through the simulation process on how to simulate classful routing protocols using OMNeT++:
Steps to Simulate Classful Protocol Projects in OMNeT++
- Set Up OMNeT++ and INET Framework
- Install OMNeT++: Make sure we have the latest version installed on the system.
- Install INET Framework: Even though INET primarily supports RIPv2 (classless), we can set up it to simulate classful behaviour by disabling subnetting and using default IP address classes.
- Choose and Configure Classful Protocols
- RIP Version 1 (RIPv1): RIPv1 is integrally classful, as it does not support variable-length subnet masking (VLSM) and only uses class-based routing.
- IGRP (Cisco Proprietary): Even though OMNeT++ does not natively support IGRP, we can replicate same behaviour by setting up RIPv1 to reflect classful characteristics.
- Define Network Topology with Classful Addressing
- Class-Based IP Addressing: Allocate an IP addresses according to classful ranges:
- Class A: 1.0.0.0 to 126.0.0.0, default mask 255.0.0.0
- Class B: 128.0.0.0 to 191.255.0.0, default mask 255.255.0.0
- Class C: 192.0.0.0 to 223.255.255.0, default mask 255.255.255.0
- Simple Hierarchical Topology: Make a topology in which distinct router groups denote Class A, B, and C networks, connecting them via routers with classful configuration.
- Multiple Subnets: Configure distinct networks rely on IP classes and set up the routers without subnet data.
- Enable and Configure RIPv1 as a Classful Protocol
- Set Up RIPv1 on Routers: In the INET configuration files, allow RIPv1 and set up it to use default classful routing behaviour.
- Update Interval: Set the interval upon which routers are transmit routing updates (default is 30 seconds).
- Route Expiry and Garbage Collection: Describe route timeout values, like 180 seconds for route expiration and 120 seconds for garbage collection.
- Disable Subnetting: Make sure no subnet masks are utilized. RIPv1 will automatically treat addresses according to their class (A, B, or C) without supporting subnets.
- Simulate Routing with Classful Protocols
- Initial Routing Table Exchange: Monitor how routers establish routes depends on the classful IP addresses without subnet data. Make certain that routing tables contain only class-based network addresses.
- Network Changes: Replicate a network topology change, like a link or node failure, to observe how RIPv1 adjusts and reestablishes routes using classful updates.
- Route Propagation: Monitor how routing updates propagate through distinct class networks and check that only classful routes are shared (e.g., an entire Class B network).
- Monitor and Collect Simulation Data
- Routing Table Consistency: Log routing tables at each router to make certain routes are consistent with classful addressing rules and do not contain subnet information.
- Convergence Time: Estimate the time taken for the whole network to converge after a topology change, as classful protocols tend to have slower convergence in larger networks.
- Routing Overhead: Monitor the volume of RIPv1 updates and compare it with the size of the network to know the overhead connected with periodic updates.
- Analyze and Visualize Simulation Results
- Routing Path Visualization: We can be utilized OMNeT++’s visualization tools to monitor the paths selected by RIPv1 for data packet transmission and then make sure routes conform to classful boundaries.
- Traffic Flow Analysis: Check that traffic flows among the routers as expected rely on the class of the IP addresses and that routing does not take into account subnet masks.
- Routing Update Analysis: Make a graphs that displaying the frequency and size of routing updates to estimate how RIPv1 manages the network changes.
- Generate Reports and Graphs
- Convergence Time: Plot convergence time for distinct network changes that explaining the delay in attaining a consistent routing state through the network.
- Packet Delivery Ratio: Compute the success rate of data packet delivery across class-based networks, offering insights into the reliability of classful routing.
- Control Overhead: Envision the number of RIPv1 updates relative to network size to calculate the scalability and efficiency of classful routing in distinct scenarios.
- Advanced Scenarios and Customization (Optional)
- Route Aggregation: Mimic how a network with larger classful blocks (e.g., Class A) influences routing table sizes compared to smaller classful blocks (e.g., Class C).
- Legacy Interoperability Testing: Discover scenarios in which classful networks are interact with classless networks that may contain using boundary routers are configured with classful settings.
- Security and Classful Routing: Analyse basic authentication configurations (such as password-based) to secure RIPv1 updates that is particularly related in legacy networks.
We have showcased a basic guidelines to simulate and analysed the Classful Protocol Projects with the aid of simulation tool OMNeT++ and INET framework. Also we provide additional informations and ideas relevant to this protocol, if required.
Our team effectively simulate classful protocol projects using the OMNeT++ tool, we at phdprime.com are committed to steering you towards success in your career. Feel free to reach out to us for expert research guidance. Additionally, we specialize in Routing Information Protocol version 1 (RIPv1) and Interior Gateway Routing Protocol (IGRP).
