The string c2800nm-adventerprisek9-mz.152-1.bin is a specific filename for a . It is designed for use with Cisco 2800 Series Integrated Services Routers , such as the 2811, 2821, or 2851. Breakdown of the Filename
Router# verify /md5 flash:c2800nm-adventerprisek9-mz.152-1.bin c2800nm adventerprisek9 mz 152 1 link
Version 15.2(1) requires more DRAM and Flash than older 12.4 images. The 2800 series typically needs a minimum of 512MB DRAM and 128MB Flash to run this image stably with VPN features enabled. The string c2800nm-adventerprisek9-mz
The 2800 series is now End of Life (EOL). If you no longer have a contract, Cisco may not allow you to download new images. In that case: such as the 2811
Router# configure terminal Router(config)# boot system flash:c2800nm-adventerprisek9-mz.152-1.bin Router(config)# config-register 0x2102 Router(config)# exit Router# write memory Router# reload