SERVICE PROVIDER

Planning the IP Address configurations in a hosted environment
A crucial step in planning an xSP configuration is to determine which of the following IP address configurations to use: The IP address configuration that you choose will have an impact on your entire xSP configuration.

One IP address that is shared by multiple hosted organizations

The following figure shows xSPserver1 supporting multiple hosted organizations sharing IP address 92.32.2.0.

Figure of one xSP server supporting multiple hosted organizations that share one IP address.

Note SSL is not supported in this configuration because IBM® Lotus® Domino® does not provide server authentication on a per-hosted-organization basis.

If the configuration features one IP address shared by multiple hosted organizations, POP3, IMAP, HTTP, SMTP, LDAP and Domino IIOP are the available protocols. In this configuration, each IP address entered on the Internet Site documents must be the same for each protocol. The POP3, IMAP, and LDAP users must use their Internet e-mail addresses to authenticate. This configuration does not support anonymous access to LDAP.

One IP address for each individual hosted organization

If you are using SSL, use a unique IP address for each hosted organization. To use this configuration, you must bind the IP address to the xSP server.

The following figure shows xSPserver2 supporting three hosted organizations, each with its own unique IP address.

Figure showing one xSP server supporting three hosted organizations each with a unique IP address.

Combination of IP address configurations

You can use a combination of the two IP address configurations shown above. The following figure shows three servers that collectively host many hosted organizations.

Configuration with both shared IP addresses and unique IP addresses.

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