Prerequisites for Cisco IOS Auto-Upgrade Manager
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You must configure the DNS server IP address on the router for a download from Cisco. For more details, refer to the “Configuring the DNS Server IP Address: Example” section and the “Related Documents” section.
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You must configure the Secure Socket Layer (SSL) certificate from the Cisco website (www.cisco.com) on the router for a download from Cisco. This configuration is not required for a download from a non-Cisco server. For more details, refer to the “Configuring the SSL Certificate for a Cisco Download” section and the “Related Documents” section.
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You must register with Cisco Systems for cryptographic software downloads if you want to download cryptographic Cisco IOS software images.