The Spain international has attracted attention from both of the country's biggest clubs, with Barcelona president Joan Laporta previously expressing his admiration for the right-back.
Porro was surprised when told about Laporta's comments during an interview with Spanish newspaper Sport, but welcomed the recognition.
"Really?! I hadn't seen that. Well, it's flattering coming from him," he said.
"It's nice that the president of another club, one that isn't mine, likes me. It probably means I'm doing things well."
Asked about the reported interest from Barcelona and Real Madrid, the 27-year-old was careful not to encourage speculation about a departure from north London.
"I have a contract with my club and I'm very happy there. I also have to respect my club. Obviously, that's football, things come out, rumours come out. But I'm focused on the national team now, and then we'll see."
Porro also acknowledged that being linked with clubs of that stature was a compliment, while stressing that the attention should motivate him to maintain his performances.
"Yes, of course it's flattering. When the best clubs in the world are interested in you, or at least that's what you're telling me, it's always good. It probably means you're doing your job well, so you just have to keep going in the same direction."
His comments follow earlier reports of enquiries from Spain, although the defender has previously made a distinction between clubs asking about his situation and making a concrete approach.
He has explained that nobody contacted him directly with a proposal and that he did not want to entertain speculation while committed to Tottenham. The right-back also acknowledged that the Premier League club would likely demand a significant fee for a player they regard as important.
Porro's current contract runs until June 2031, having been extended earlier this year. He has also spoken openly about his affection for Spain and his desire to return to play in his home country one day, but has been equally clear about the respect he has for Tottenham.
The interview also covered his relationship with Barcelona youngster Lamine Yamal, with whom he has developed an understanding on Spain's right flank.
Porro was full of praise for the teenager and the contribution he makes to the national team.
"He's a wonderful lad, as I've always said. He helps you and contributes to the team. For me, it's a privilege to play with him because, in my opinion, he's the best."
The Tottenham defender explained that Yamal is also willing to help him defensively when required, despite the winger's natural preference for attacking.
"Of course. He's a player who helps you and supports you when he knows you're struggling."
"Obviously, his strength is attacking. I've already told him he can attack, because I'll be there to help him."
For Tottenham, Porro's comments provide reassurance that he is not actively seeking a move, even if the prospect of returning to Spain remains attractive. He has welcomed the attention but has made no suggestion that he intends to force an exit from the club.