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Gillingham will travel to non-league Macclesfield in the second round of the FA Cup if they win their replay at Brackley, which is scheduled for next Tuesday.
Bradley Dack's stoppage-time equaliser at Priestfield earned a 1-1 draw to keep the Gills in the competition just as the Skrill North side looked set to cause a big upset.
Macclesfield, who beat Swindon 4-0 on Saturday, are 14th in the Skrill Premier and they reached the FA Cup fourth round last season before losing to eventual winners Wigan Athletic.
Meanwhile, a trip to MK Dons - who sit eighth in League 1 - is Dover Athletic's reward for reaching the second round.
Nathan Elder and Chris Kinnear Jnr scored to hand the Skrill South side a 2-1 win at Corby Town on Saturday.
Welling United beat Skrill Premier rivals Luton Town 2-1 at Park View Road on Saturday but they face a long away trip in round two.
Jamie Day's side will travel to either Lincoln City or Plymouth Argyle after the two sides played out a goalless draw at Sincil Bank.
Plymouth are 17th in League 2, while Lincoln are five places and six points below the Wings in non-league's top flight.
The ties will be played over the weekend of December 7.
FA CUP SECOND ROUND DRAW
Lincoln City or Plymouth Argyle v Welling United
Macclesfield Town v Gillingham or Brackley Town
Milton Keynes Dons v Dover Athletic