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Disabling this setting is much more questionable for the security of a system, and should be much more rarely required unless clients are making use of seriously broken networks.
V3.1+ also includes an additional setting in the <SessionCache> element called unreliableNetworks. This setting can be used to "relax" the address checks when both operands of the comparison match a specied network range, and may allow the consistentAddress setting to stay enabled in some cases.