MultiPort/LT Guide

Ethernet Gateway

Multiprotocol access to the corporate Ethernet backbone provides seamless and simultaneous connectivity to Apple, PC, DEC, and to UNIX environments, such as the Internet. MultiPort/LT is a full AppleTalk Router, while for TCP/IP and DECnet protocols MultiPort/LT functions as an end-node router.


EtherTalk routing provides AppleTalk access to Ethernet connected Macintoshs and AppleShare file servers. This includes UNIX and PC environments such as Helios EtherShare, XiNet K-Ashare, public domain netatalk, Novell NetWare for Macintosh, and Microsoft Windows NT.

DECnet Level 1 Routing permits access to Digital VAX/VMS services from both LocalTalk and ARA clients. DECnet packets are encapsulated within AppleTalk for transport over these media, and de-encapsulated at the Ethernet port.

MacIP protocol allows TCP/IP and Internet access from LocalTalk and Apple Remote Access connected clients. IP protocol is not inherently compatible with LocalTalk or ARA links. So MultiPort/LT, in cooperation with Open Transport or MacTCP, encapsulates IP packets within AppleTalk for transport over these media, presenting regular IP protocol to the Ethernet connected hosts. MultiPort/LT acts as a MacIP Zone Server, and the administrator has a choice of static or dynamic (server-mode) IP address serving to all connected Macintoshs.

IPTalk encapsulation of AppleTalk into TCP/IP permits access to Columbia AppleTalk Package (public domain) and Intercon NFS Share file servers. It also allows tunneling of data, zone and network information between AppleTalk networks across TCP/IP links, permitting the creation of large distributed AppleTalk networks over the corporate IP backbone or Internet.

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Last updated March 21, 2005
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