Setting up SRV records for a Minecraft server

I have a Minecraft server listening on port 25566, and I'm trying to set up an SRV record on my domain so you can access that game server by just typing the IP address: play.example.com.

After many tries It seems I can't get it to work. Here's what I've done:

1. Set up an A record pointing to my server:

   Name: play.example.com    Destination IP Address: 123.4.5.6
   

2. Set up an SRV record like this:

   Name: _gserver._tcp.play.example.com Priority: 0 Weight: 0 Port: 25566 Value: play.example.com
   

When I try to access play.example.com It doesn't redirect me to the port. For some reason the A record works, but the SRV one doesn't.

Any idea why this isn't working?

The protocol that minecraft uses is minecraft, not gserver.

The SRV record should be

• Name: _minecraft._tcp.play.gameserver.com
• Priority: 0
• Weight: 0
• Port: 25566
• Value: play.gameserver.com