The Virtual Ipx Network Created For The Ipx Compatibility Feature; Migration Agent (Ma) - Novell NETWARE 6-DOCUMENTATION Manual

The Virtual IPX Network Created for the IPX Compatibility Feature

Migration Agent (MA)

32
Server Communications Administration Guide
The default IPX network number (CMD network number) assigned to the
virtual IPX network created by the IPX Compatibility drivers is
0xFFFFFFFD. If you want to set up Migration Agents to interconnect IP
systems with IPX systems, you must ensure that the CMD network number
does not conflict with the internal IPX network number of a server or with the
IPX network number of a network segment. You must also ensure that IPX
routers are not filtering this address.If you find a system or a segment that
conflicts with the CMD network number, you have the option of overriding
the default CMD network number by modifying the configuration of IP-only
clients and servers. You might find it easier to change the network number of
the conflicting system or segment, rather than trying to override the default
CMD network number.
The Migration Agent is a tool that enables communication between IPX and
IP systems. It also enables you to create an IP backbone that interconnects IPX
segments. Use this tool when you want to migrate systems from IPX to IP in
a phased manner without losing connectivity.
The MA takes the IPX requests, which are in an IP packet, and tunnels the IP
packet in an IPX wrapper to be sent out on the IPX wire. The opposite occurs
when an IPX packet is sent across the IP backbone.
In previous versions of NetWare, IP access was provided on NetWare
networks with NetWare/IP
packets) and tunneled each in an IP wrapper. This kind of IP tunneling is no
longer needed, because tunneling has been reversed in NetWare 6—instead of
tunneling IP packets in IPX with NetWare/IP, IPX packets are now tunneled
in IP packets with the Migration Agent. Now, only the few IPX requests
require tunneling, providing better throughput and efficiency.
The MA serves as a router between the IPX network and the virtual IPX
network segment created by the IPX Compatibility drivers as illustrated in
Figure 3 on page 33.
. NetWare/IP took every packet (all were IPX
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