Introduction Dynamic routing protocols exchange routing information before populating routing tables and forwarding packets. For this task, RIP (routing information protocol) put into play many machanisms and rules to guarantee that this routing information exchange is consistent: not contradictory among routers. An example of such inconsistency is to receive the same routing information on two…
This post is a part of series of posts about RIP dynamic routing protocol. Here we deepen our understanding on how RIP protocol advertises learnt RIP routes. A simple case is where a route is in the middle of this update process dans got a better route than RIP. Introduction Let’s recall first that RIP…
RIP is Routing Information Protocol, one of the IGP or Interior Gateway Porotocols called also a vector-based routing protocol in contrast with link-state, hybrid or path-based protocols. The function of this protocol is very simple, send updates about known networks through local interfaces enabled for this sending… In this lab we use a standard version…
This post is part of a series of blogs about RIP functionning from the basic to the more complex operation. Let’s recall that RIP stands for Routing Information Protocol and is an IGP (Interior Gateway Protocol) in the same category as OSPF, EIGRP, etc.; most implementations of RIP are not centralized (distributed) meaning that no…
In this post we review a basic multicast routing operation, step by step using output from routers console and traffic packet capture (using wireshark). Introduction This blog is a part of a serie of blogs about multicast routing: How does multicast work In IPv4, multicasting servers use class D range of addresses: 224.0.0.0-239.255.255.255. Some addresses…...
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In this blog, we study RPF operation. Introduction This blog is a part of a serie of blogs about multicast routing: Test network In our test network RPF in action At R2 A “show ip interface brief” shows Digging into the interface tunnel0 details The tunnel was created by PIM process to join the RP…
