Python for Network Engineers

Ip fragmentation and ip mtu size

By George El. • December 2018 • Reading time: 5 minutes

In this example, I explain the ip fragmentation, based on the ip mtu size and the role of icmp unreachable messages. You can follow along, by downloading the pcap files&nbsp;<a href="R3-cloud.pcapng">cloud-R3</a> <a href="R2-R3.pcapng">R2-R3</a> I have the following topology. Cloud 1 is where my PC is with ip address 192.168.137.1, a windows 10 machine, from wich I ping router R2 which has a loopback ip address of 2.