Support & Operations Application Note: Running Cisco 5921 ESR software router on DuraCOR 80-41 Download Resource The file you are trying to access requires you to be logged in as a registered user. Registration is free, sign up today. Username Enter your Curtiss-Wright Defense Solutions username. Password Enter the password that accompanies your username. Forgot password? Don’t have an account? Register here. This application note assumes that the 5921 software has already been installed and licensed on the DuraCOR 80-41 per instructions provided by Cisco.