3.1.5.1 Establishing the HTTPS Connection

Immediately following initialization per section 3.1.3, the IP-HTTPS client MUST establish an HTTPS connection to the IP-HTTPS server (per the configuration in section 3.1.3), as defined in [RFC1945], [RFC2616], [RFC2818], [RFC4346], and [SSLPROXY].

The IP-HTTPS client SHOULD<1> support proxy authentication as specified in [SSLPROXY].