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an Internet address of different TCP/IP networks. With these multiple Internet
addresses, you take part in different TCP/IP networks (Figure 51).
This example is a combination of all of the previous examples discussed.
Figure 51. Multihoming - Multiple Hosts, Multiple Networks, Multiple Lines
Example: The Multihoming function
Assume servers SYSNAM02 and SYSNAM03 are connected with a public or
private X.25 network. The Internet address of this network is 9.4.73.64.
In this example, the server SYSNAM03 connects with a service provider by using
TCP/IP and the same X.25 network attachment (Figure 52). The Internet address
assigned by the service provider for the server is 223.1.1.17.
Figure 52. Multihoming TCP/IP Network
The multihoming function supports multiple networks with the same adapter.
Server SYSNAM03 must handle two different Internet addresses on the same
attachment. To do this, an additional TCP/IP interface needed to be specified
(Figure 53 on page 60).
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Chapter 2. TCP/IP: Operation, Management, and Advanced Topics
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