The Germans want to bring the out-of-favour Gunners defender back after he spent half of last season on loan at the club after an unsuccessful decade at the Emirates Stadium
|9/2||Arsenal are 9/2 with William Hill to take nine points from their first three Premier League matches
Djourou has two years left to run on his existing contract but made only two starts in all competitions for the Gunners in 2012-13.
"We are in touch with Arsenal and we feel talks with the clubs have been put on the right track. We are confident. The lad will now need to make a decision," Dufner explained to Bild.
"He needs to say where the road will lead him next. He knows what Hannover is about and we definitely did the best we could. I hope this will be enough to see him decide for us."
Djourou made 16 appearances for the German club last season, helping them to a ninth-place finish in the Bundesliga.