<div class="content"><p>The TSG_PACKET_AUTH structure is sent by the client to the
TS Gateway server when Pluggable Authentication is used. This packet includes <a href="97c5562c-70a3-4d45-99eb-732202743cd9" data-linktype="relative-path">TSG_PACKET_VERSIONCAPS</a>,
which is used for capability negotiation, and cookie, which is used for user
authentication. This MUST be the first packet from the client to the server if
the server has Pluggable Authentication turned on. The value of the <b>packetId</b>
field in <a href="4c505da0-93c2-4a2f-9329-6174bbaa481b" data-linktype="relative-path">TSG_PACKET</a>
MUST be set to <a href="1714596b-088d-4dca-b9fe-8cbfa2520533" data-linktype="relative-path">TSG_PACKET_TYPE_AUTH</a>.</p><dl>
<dd>
<div><pre> typedef struct _TSG_PACKET_AUTH {
   TSG_PACKET_VERSIONCAPS TSGVersionCaps;
   [range(0,65536)] unsigned long cookieLen;
   [size_is(cookieLen)] byte* cookie;
 } TSG_PACKET_AUTH,
  *PTSG_PACKET_AUTH;
</pre></div>
</dd></dl><p><b>TSGVersionCaps:</b>  A
TSG_PACKET_VERSIONCAPS structure as specified in section 2.2.9.2.1.2.</p><p><b>cookieLen:</b>  An unsigned long that
specifies the size in bytes for the field cookie.</p><p><b>cookie:</b>  A byte pointer that points
to the cookie data. The cookie is used for authentication.</p></div>