Don't let the fear of a reload hold you back. An unpatched router running a decade-old image is a ticking time bomb. Perform the update during the next maintenance window. Your network—and your security auditor—will thank you.
The "Universalk9" image supports all feature sets (IP Base, Data, UC, Security), but you need the correct license activated. c2951universalk9mzspa1573m8bin updated