| Module | IpRestrictionModule |
| Notification | BeginRequest |
| Handler | ExtensionlessUrl-Integrated-4.0 |
| Error Code | 0x80070021 |
| Config Error | This configuration section cannot be used at this path. This happens when the section is locked at a parent level. Locking is either by default (overrideModeDefault=”Deny”), or set explicitly by a location tag with overrideMode=”Deny” or the legacy allowOverride=”false”. |
Update file: applicationhost.config (%userprofile%\documents\iisexpress\config\applicationhost.config)
Change line:
<section name=”ipSecurity” overrideModeDefault=”Deny” />
To:
<section name=”ipSecurity” overrideModeDefault=”Allow” />
And in web.config use:
<system.webServer>
<security>
<ipSecurity allowUnlisted=”false” denyAction=”Unauthorized”>
<clear/>
<add ipAddress=”X.X.X.X” allowed=”true” subnetMask=”255.255.255.0″ />
</ipSecurity>
</security>
</system.webServer>