I lucked out and got the recent cheap-o fare to Brussels for the first week of March. I'm gonna fly on to Ireland and was looking at an Aer Lingus flight on 3/1.

My BRU flight gets in at 8:50am and I'd be looking to go on to DUB as quickly as possible. There's a 10:05am flight, but then the next one isn't until 4:15pm. Trying to decide how feasible it is to catch the first one.

Anyone familiar with transferring international flights in BRU? Will I have to go through customs/security again? Does it make a difference that the DUB flight would be on a separate itinerary from my initial flight into BRU? Thanks!