I86bi-linux-l3-adventerprisek9-ms.155-2.t.bin -
Unlike Dynamips, which emulates hardware to run IOS, IOU is a port of the code itself. This makes it incredibly lightweight, allowing users to run dozens of routers on a modest laptop without pinning the CPU. Breaking Down the Filename
: Refers to the IOS version 15.5(2)T . The "T" train is the technology release, often containing newer features than the standard "M" (Mainline) train. .bin : The binary executable file format. Why is this Version Significant? I86bi-linux-l3-adventerprisek9-ms.155-2.t.bin
: It is important to note that IOU images require an iourc license file to run. This file contains a license key mapped to the hostname of the Linux machine running the image. Unlike Dynamips, which emulates hardware to run IOS,
: ZBFW (Zone-Based Firewall) and various IPsec configurations. which emulates hardware to run IOS