Once I load a new image, I want to copy my current running config back. If I saved the running config to NVRAM, will it still be there after I install the new image? Or do I need to send it to a tftp?

My boss put me in charge of getting our systems updated with the recent DNS poison patches. I got the proper patch from Cisco for my 1841, but how exactly do I apply it? I have worked in the Cisco IOS before, but just very basic stuff; setting up I...

I was recently hired by my current company and my boss told me to look into turning our 1841 into a router. Currently, only 1 slot is occupied with a WIC-1DSU-T1. Our PIX 501 firewall currently handles our routing functions.Can anyone point me into...