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checkAddress(boolean) (default is falsetrue)- The IdP will place the IP address of the user agent it authenticated into the assertions it issues. When true, the SP will check this address against the address of the client presenting an assertion before creating a session. While useful for security, NAT and proxy usage (as well as IPv6 support on only either the webserver hosting the IdP or the SP) often make this setting a source of errors.
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