The Rossoneri turned a corner midweek with their 3-2 Champions League win over Zenit.
Allegri said: "That victory could mean a lot or nothing at all. We are facing a great team with players like Esteban Cambiasso, Javier Zanetti, Walter Samuel, Diego Milito and Antonio Cassano who have many 'battles' behind them.
"Inter are a smart and experienced side as well as having technical qualities. We have to be smarter and sneakier than them. Don't forget that is a crucial characteristic if you want to win League and European titles.
"What do I envy Inter? Nothing. I am happy to have the lads at my disposal, both for their quality and the enthusiasm they bring. At times we make mistakes and these have to be eliminated."