RFC 2637:Point-to-Point Tunneling Protocol (PPTP)
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sender


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... version of the PPTP protocol that the sender wishes to use. Reserved1 This field MUST be 0. ...
... Framing Capabilities A set of bits indicating the type of framing that the sender of this message can provide. The currently defined bit settings are: ...
... Bearer Capabilities A set of bits indicating the bearer capabilities that the sender of this message can provide. The currently defined bit ...
... version of the PPTP protocol that the sender wishes to use. Result Code ...
... Framing Capabilities A set of bits indicating the type of framing that the sender of this message can provide. The currently defined bit settings are: ...
... Bearer Capabilities A set of bits indicating the bearer capabilities that the sender of this message can provide. The currently defined bit ...
... Echo-Reply to each Echo-Request received. As specified in section 3.1.4, if the sender does not receive an Echo-Reply in response to an Echo ...
... Identifier A value set by the sender of the Echo- Request that is used to match the reply with ...


... When a time-out does occur on a packet, the sender adjusts the size of the transmit window down to one half its value when it failed. Fractions are rounded up, and the minimum window size is one. ...



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