[Wlug] port security question

I'm trying to set up Echolink (amateur radio software) on Ubuntu (through WINE). My computer failed the firewall tests -the troubleshooting material recommended the following: Allow UDP destination ports 5198-5199 between Internet and PC in both directions Allow TCP (source port any, destination port 5200) from PC to Internet What security risks do I introduce by doing this? (Is it worth the risk?) Thanks, Simeon MacMillen P.S. I've been on the Wlug mailing list for a year, though I've only managed to make it to one meeting so far.