"System" Wants to Connect Out on Ports 137, 138, 139 (udp)

From: Treeslug (tree_at_slug.com)
Date: 08/30/04


Date: Mon, 30 Aug 2004 16:20:00 GMT

WindowsXP Home

According to Kerio 2.1.5 the computer (System) keeps trying to connect
out with ports 137-139.

What is this, and should I block it?