URL-based Redirection
The redirect URL specifies UPF to return a redirect response to the subscriber and terminate the TCP connections. The subscriber web browser automatically sends the original HTTP packet to the specified URL. If the flow is not HTTP, the redirect URL option is ignored and the packet is forwarded normally. UPF supports redirection only for certain types of HTTP packets (for example, GET requests), which are only sent in the uplink direction. UPF allows appending the dynamic fields to the redirection URL when a URL redirection occurs.
UPF supports the following dynamic fields for URL redirection:
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#ACSMGR_BEARER_CALLED_STATION_ID#
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#BEARER.IMSI#
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#BEARER.MSISDN#
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#HTTP.HOST#
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#HTTP.URL#
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#HTTP.URI#
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#RTSP.URI#
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#RULEBASE#