Cardiff face a trip to Northampton Town for a Carabao Cup 1st round tie. Fixtures to be played around Saturday September 5th (subject to adjustment because it's an international weeked).
One other interesting tie from th Southern section is a South Wales derby between Newport and Swansea.
Here are the fixtures in full:
Round One draw, Northern section
Tranmere vs Harrogate
Crewe vs Lincoln
Walsall vs Sheffield Wednesday
Rochdale vs Huddersfield
Preston vs Mansfield
Bolton vs Bradford
Blackburn vs Doncaster
Stoke vs Blackpool
Fleetwood vs Wigan
Grimsby vs Morecambe
Middlesbrough vs Shrewsbury
Derby vs Barrow
Scunthorpe vs Port Vale
Sunderland vs Hull
Burton vs Accrington
Salford vs Rotherham
Barnsley vs Nottingham Forest
Oldham vs Carlisle
Round One draw, Southern section
Bristol City vs Exeter
Plymouth vs QPR
Swindon vs Charlton
Forest Green vs Leyton Orient
MK Dons vs Coventry
Crawley vs Millwall
Stevenage vs Portsmouth
Peterborough vs Cheltenham
Brentford vs Wycombe
Northampton vs Cardiff
Luton vs Norwich
Birmingham vs Cambridge
Newport vs Swansea
Oxford vs AFC Wimbledon
Reading vs Colchester
Gillingham vs Southend
Ipswich vs Bristol Rovers