Inter asked Atletico Madrid for Sime Vrsaljko on loan with option to buy, but only a permanent sale will be considered.
According to Sky Sport Italia, the Nerazzurri had a meeting with Atleti chiefs today and made the request.
However, the Croatia international is sought-after on the transfer market with interest from Napoli and several Premier League clubs.
Atletico Madrid have no intention of releasing the 26-year-old on loan and are demanding a high price in the region of €25-30m.
He already has Serie A experience at Genoa and Sassuolo, joining Atleti for €16m in 2016.
The right-back can also play on the left of defence and is currently at the World Cup with Croatia.