* TUNNEL_MODIFY - CONN_ID, udpcsum
* TUNNEL_GETSTATS - CONN_ID, (stats)
* TUNNEL_GET - CONN_ID, (...)
- * SESSION_CREATE - SESSION_ID, PW_TYPE, offset, data_seq, cookie, peer_cookie, offset, l2spec
+ * SESSION_CREATE - SESSION_ID, PW_TYPE, data_seq, cookie, peer_cookie, l2spec
* SESSION_DELETE - SESSION_ID
* SESSION_MODIFY - SESSION_ID, data_seq
* SESSION_GET - SESSION_ID, (...)
* |x|S|x|x|x|x|x|x| Sequence Number |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
- * Cookie value, sublayer format and offset (pad) are negotiated with
- * the peer when the session is set up. Unlike L2TPv2, we do not need
- * to parse the packet header to determine if optional fields are
- * present.
+ * Cookie value and sublayer format are negotiated with the peer when
+ * the session is set up. Unlike L2TPv2, we do not need to parse the
+ * packet header to determine if optional fields are present.
*
* Caller must already have parsed the frame and determined that it is
* a data (not control) frame before coming here. Fields up to the