3819e375_ubleshooting_ISR_G2s___DocWiki_ble_4_Troubleshooting_Toolkits_Tool
[Function] Choose appropriate software for your network device by matching software features to Cisco IOS and CatOS releases, comparing Cisco IOS releases, or determining which software releases support your hardware. [URL on Cisco.com] http://tools.cisco.com/Support/Fusion/FusionHome.do [Tool] 
Software Adviser
Troubleshooting ISR G2s - DocWiki