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The Stub Lab is a fully functional Cisco Lab provided as a free service to the community by Free CCNA Workbook, allowing any Stub Lab registrant to gain remote access to real Cisco hardware as they strive to obtain Cisco certifications. At the heart of the Stub Lab is an Opengear IM4216, which gives Stub Lab specific capabilities to secure, monitor, control, and deliver a fully functional lab experience remotely.