Hi there
According to the following article...
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http://www.cisco.com/c/en/us/support/docs/security/anyconnect-secure-mobility-client/118086-technote-anyconnect-00.html#anc9
AnyConnect Behavior
This section describes how the AnyConnect behaves.
- AnyConnect tries an HTTPS probe to the Fully Qualified Domain Name (FQDN) defined in the XML profile.
- If there is a certificate error (not trusted/wrong FQDN), then Anyconnect tries an HTTP probe to the FQDN defined in the XML profile. If there is any other response than a HTTP 302, then it considers itself to be behind a captive portal.
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...AnyConnect only recognises a Captive Portal if redirected by HTTP. No word about what happens with DNS redirects.
Microsoft uses www.msftncsi.com to detect connectivity, Google does it by checking http://clients3.google.com/generate_204. All DNS checks.
So is it true, that AnyConnect Portal Detection does not work in Hotspot/Hotel Environments where just DNS redirects are used?
Thanks
