The home side were impressive but we created enough chances on the night to suggest we can get at their advantage in the second leg at the Lane next Wednesday, April 13, kick-off 7pm.
Indeed, we could have been ahead - Andy Barcham denied one-on-one by Shane Supple in the Ipswich goal - before the Suffolk outfit got into their stride.
It has to be said Ipswich looked good in possession and enjoyed spells in both halves but it took a deflected goal after 76 minutes to hand them that extra goal cushion.
Both teams started with a 4-4-2 system with Simon Dawkins back in for Radwan Hamed in our only change from the quarter-final win at Watford.
The lads made a sprightly start with Jamie O'Hara and Stuart Lewis snapping away in central midfield and were straight on the attack. Just two minutes had passed when O'Hara found Andy Barcham, he laid the ball square to Charlie Daniels whose fierce drive was too hot to handle for Shane Supple in the home goal and the rebound hacked away.
Ipswich responded after seven minutes, Billy Clarke scuffed his shot from a decent position in the box and Darryl Knights lashed the loose ball wide.
Barcham looked lively as ever and was almost on the end of Phil Ifil's teasing cross from the right - Supple out quickly to gather - before nodding a centre from Charlie Daniels wide after 12 minutes. Clarke, who looked just as lively, then drilled just over from 20 yards.
Supple made the first noteworthy save of the tie to deny Barcham after 16 minutes. Aidan Collins' slip allowed Barcham a run on goal but the keeper was out quickly to block with his legs. Play continued and Barcham squared from the left for Daniels, 10 yards out, but he fired straight at Supple.
Ipswich then enjoyed a passage of tidy possession football, Knights volley was deflected just wide after 27 minutes and as we struggled to clear our lines, they took the lead two minutes later. Knights volleyed a pass wide, Liam Craig crossed quite low, Clarke's header was half-blocked and as the home side appealed for handball, Liam Trotter tucked the ball away from close range.
We came within inches of responding immediately. O'Hara found Dawkins in space in the right corner of the box and his angled drive flashed just wide. Lewis then tried his luck from distance, a decent effort a couple of yards wide.
Ipswich pinned us in for a spell in the final few minutes before the break and Trotter had three chances to double the lead. The first was a free header from Moore's free-kick that floated just wide, he then drilled low to Forecast's right from 16 yards and after Forecast parried away, was first to the rebound only to miss the target from 10 yards.
We started the second half back on the front foot and Charlie Lee might have done better when O'Hara's free-kick picked him out at the far post, volleying wide. The lads enjoyed the better possession but found chances at a premium until two in a minute - a quick break down the right saw Ifil cross for Barcham to volley straight at Supple from 12 yards after 62 minutes and then Craig hacked off the line after Mills beat Supple to meet Lewis' corner.
That stirred Ipswich into action - Clarke volleyed just over from 22 yards, Craig's low drive whistled wide and Trotter was a coat of paint away from the top corner after good work from Clarke.
Clarke fired in another attempt after 69 minutes as Ipswich turned up the gas.
Jamie Davis came off the bench for Dawkins after 70 minutes and was soon in the action, O'Hara playing him in down the right and the winger's cross was cleared with Barcham waiting to tap in.
Fortune then went against us. Clarke picked the ball up 30 yards out, tried his luck and his shot appeared to take a wicked deflection off Lee, leaving Forecast completely wrong-footed as the ball nestled in the corner, 76 minutes on the clock.
The goal appeared to knock the stuffing out of the lads for the final 10 minutes and Ipswich had one final, great chance in injury time as Clarke played in Knights who sliced wide from 10 yards.
16mins: SAVE. Barcham latched onto Collins' slip and was through on goal, right-hand side, Supple out to block with legs.
29mins: GOAL. Clarke's header was half-blocked and as the home side appealed for handball, Liam Trotter tucked the ball away from close range.
Ipswich 1, Spurs 0
31mins: CLOSE. O'Hara found Dawkins in the right corner of the box, low drive across Supple flashed inches wide.
41mins: CLOSE. Moore's free-kick headed a foot wide by Trotter.
42mins: CHANCES. Decent build-up play again from Ipswich, Clarke laid ball back for Trotter to drill at Forecast from 16 yards, Trotter onto rebound but missed target from 10 yards.
Half-time: Ipswich 1, Spurs 0
62mins: CHANCE. Quick break forward, Ifil crossed from right for Barcham to volley straight at Supple from 12 yards.
63mins: OFF LINE. Mills beat Supple in air to meet Lewis' corner only for Craig to clear off line. Lee lobbed rebound over the bar from 16 yards.
68mins: CLOSE. Good play from Clarke, cut inside Lee and laid ball back for Trotter to strike from 20 yards inches wide.
76mins: GOAL. No luck as Clarke's 30-yarder appeared to deflect off Lee, leaving Forecast totally wrong-footed.
Ipswich 2, Spurs 0
Injury time: MISS. Clarke played in Knights who sliced wide from 10 yards.
Final score: Ipswich Town 2, Spurs 0
Ipswich Town: Supple, Moore, Synnott, Trotter, Collins, Casement, Lordan, Knights, Clarke, Garvan, Craig. Subs: Hammond, Reynolds, Ainsley, Sheringham, Haynes.
Spurs: Forecast, Ifil, Wright, Lewis, Mills, Lee, Maghoma, Dawkins (Davis, 70), Barcham, O'Hara, Daniels. Subs: Riley, Holloway, Seanla, Archibald-Henville.
Our Under-18s have been left with an uphill - but by no means impossible - task to reach the final of the FA Youth Cup after a 2-0 reverse in the semi-final, first leg at Portman Road on Friday night.