Hereford manager Josh Gowling says Portsmouth won't underestimate the Bulls. Their manager came from non-league.
"They know non-league well," Gowling told BBC Hereford and Worcester.
"So it's not going to be a case of a team underestimating us.
"They'll have done their homework, they are meticulous with their details.
"So we expect them to come here with a game plan and with an intensity which we are going to have to match."
Meanwhile Gowling has also spoken to BBC Sport.
"We're
not going to get too high and we're not going to get too low. If we
win, then we just look at the next tie," he said.
"But we've already won in a sense, as it's put the club back in the spotlight that it hasn't been for a while. And financially it has been great for the club."