Public bug reported: XDMCP via KDE3 on dapper does not listen on ipv4, but instead ipv6. netstat -l: udp6 0 0 *:xdmcp *:* ** Affects: kdebase (Ubuntu) Importance: Untriaged Status: Unconfirmed -- XDMCP lstening on udp6 instead of udp https://launchpad.net/bugs/58071