The centre-back left Portman Road in 2002 for Newcastle United, before having stints with Wigan Athletic and Sunderland.
He is currently a free agent following his release by the Black Cats and turned out for his former club Ipswich during last night's friendly encounter against Gillingham.
"I'm not ruling anything out, there are a few options. The main is for me to stay fit ahead of wherever I may end up," he told the East Anglian Daily Times. "I've always said that one day I will come back and play for Ipswich again. Whether it's now or in a couple of years time, who knows?
"I went to a couple of Ipswich games last season and I know they've got some very good players."