Peterborough secured an FA Cup third-round meeting with Premier League leaders Chelsea, after beating Notts County 2-0 at London Road.
Posh came out the traps firing and were two goals up inside eight minutes in the two sides' second-round replay, as first Gwion Edwards and then Paul Taylor put the hosts into a lead they would never relinquish.
Former Sunderland and Ipswich striker Jon Stead missed a penalty at the end of the first half as County failed to find a way back into the contest, meaning Grant McCann's side secured a trip to Stamford Bridge.
Further chances came and went as the visitors pushed for an equaliser, with Jonathan Forte hitting the bar with a neat lob, but Posh managed to hold out.