Speaking to the Official Club Website, the former Sheffield United and Sunderland striker said: "It's a massive blow for me because it means I'm out for virtually the whole of January.
"Everyone I have spoken to - whether they be Ipswich fans or not - says it wasn't a red card and I was obviously hoping it would be rescinded.
"I've just got back in the side and started scoring goals so it's very disappointing to take and not what I needed at the moment.
"I've looked at the incident a number of times and it backed up what I felt straightaway, it was never a red card. It was a mistimed tackle, nothing more and was a booking at worst."