That allowed Leinster to carve out a 34-27 lead heading into the closing stages, but Glenn Bryce dotted down with five minutes to go and Peter Horne's conversion levelled the match.
The result means Kellock's side maintain their status as GUINNESS PRO12 league leaders and the lock thinks it was a display of mental fortitude that saw them through.
"It was fantastic to get the draw at the end," he said.
"It was a special night, it would've been slightly more special if we had managed to hang on to that 27-7 lead that we had.
"It was a great game of rugby to be involved in. To come away with three points is good for us and good for where we are in the league.
"We had done so well in the first half, played some outstanding rugby. We knew what was coming at us in the second half, we just didn't deal with it well and were pretty poor for a decent spell of that second half.
"The last 10-15 minutes was outstanding, the character and the heart that was shown was terrific."
Follow us on Facebook, join the conversation on Twitter, sign up to our YouTube channel for extensive match highlights and sign up for our newsletter for regular updates on the GUINNESS PRO12
63x46.png){kind=logo}