If a LaserWriter IIg is connected to the same Internet via LocalTalk and
EtherTalk, and the LocalTalk and EtherTalk connections are in the same
zone, the LocalTalk connection is shut down.
If the LocalTalk and EtherTalk connections are in different zones, the
printer will be advertised in both zones. If you select the LaserWriter
IIg via the LocalTalk zone, all communications go through the LocalTalk
port. If you select the LaserWriter IIg via the EtherTalk zone, all
communications go through the EtherTalk port.