The following example is the bare minimum configuration for SiteMinder (with no IP address validation):

<provider> <role>federation</role> <name>HeaderPreAuth</name> <enabled>true</enabled> <param> <name>preauth.custom.header</name> <value>SM_USER</value> </param> <param> <name>preauth.ip.addresses</name> <value>10.10.0.*</value> </param> </provider>