Multiple Domains, 1 Actual Site - 301 redirects?

[mikemcs]

I have owned www.mysite1.com for years, I recently pruchased www.mysite1.net, www.mysiteone.net. I want all of these to go to the same web page.

Should I use a 301 on the .net addresses, or is this not an issue with duplicate content?

[tedster]

It might be an issue - so yes, a 301 redirect is best.