Routing and Switching

Why are RIP and OSPF protocols listed under Application Layer of Router?
There is some confusion as to the exact layer in which RIP / OSPF works. It is generally taught that these works in the network layer. However, in Ne...
Sat, 4 Apr, 2020 at 10:57 AM
Why are ICMP packet sent at the start of a simulation in NetSim?
The  ICMP  protocol  provides an echo mechanism by which a host may solicit a response from a gateway by sending message at a reasonable  rate. Since the me...
Tue, 24 Aug, 2021 at 5:28 PM
Why does the switch broadcast initially when a simulation in NetSim is started ?
When the destination MAC address is a multicast or broadcast address or when the destination MAC address has not been learned by the switch (is not in its M...
Wed, 25 Aug, 2021 at 5:31 PM
How to setup Static Route IP in NetSim?
Applicable Versions NetSim Academic Netsim Standard Netsim Pro      Static Routing: Routers forward packets using either route information from rout...
Mon, 31 Jan, 2022 at 3:13 PM
How do we set up Access control lists / Firewalls with respect to IP in NetSim?
Access Control List Access control lists (ACLs) perform packet filtering to control which packets move through a network and to where. The packet filtering...
Sat, 28 Aug, 2021 at 9:13 AM
What are the access control list options in NetSim? And where is the code for this?
Users can Permit or Deny traffic based on 1. Direction - Inbound/Outbound 2.Protocol - TCP / UDP/ IGMP / ICMP 3. Source IP Address 4. Destination IP ...
Wed, 28 Mar, 2018 at 10:56 AM
How to configure ACL with respect to Port numbers and Protocols in NetSim?
If you have a CBR and a Voice application configured between the same two nodes, CBR follows TCP and Voice follows UDP.  So you can block Voice ...
Thu, 12 Aug, 2021 at 12:32 PM
How to access the rule list in the source codes of NetSim?
The Access Rule List for a specific device can be accessed using the API ACL_GET(nDeviceId), Where nDeviceId corresponds to the ID of the Device whose ACL i...
Thu, 31 May, 2018 at 4:43 PM
How to change static routes over time?
This can be done using NetSim's interactive simulation feature. All commands that are supported in NetSim Device Console as part of interactive simulati...
Tue, 4 Dec, 2018 at 12:40 PM
What is the OSPF default cost? How is OSPF metric value calculated in NetSim?
Applicable Versions NetSim Academic NetSim Standard NetSim Pro OSPF implementation in NetSim is based on RFC 2328. Quoting from the RFC: &quo...
Mon, 4 Dec, 2023 at 11:28 AM