The image is a widely used Cisco IOS on Unix (IOU) Layer 3 image designed for network simulation and lab environments like GNS3 and EVE-NG. Technical Profile Version : IOS 15.5(2)T. Platform : IOU (Linux on x86/Intel).
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by a community member to fix common bugs, such as console freezing or high CPU usage. Standard versions of this 15.5(2)T image are sometimes reported to have console stability issues. installation steps for this image in GNS3? Cisco IOU L3 - GNS3 15 Mar 2026 — The image is a widely used Cisco IOS
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