EXT000D: Wrapped Packet

• Extension dependencies: none
• Document status: Approved (2020-02-01)

Wrap any data in Overvis Connect packets. Wrapped packets can exceed session limit—split across multiple commands. Enables tunneling any protocol (HTTP, FTP, etc.).

Commands

0017 Exchange Wrapped Packets

Long requests split across multiple commands; device responds with OFFSET only until last part. Long responses require multiple commands with OFFSET to retrieve all parts.

Request:

<TID> 3900 <LEN> 0017 <OFFSET> [ <REMLEN> <BLOCKDATA> ]

Field	Length	Description
OFFSET	4 bytes	Block offset (or previous response offset for continuation)
REMLEN	4 bytes	Remaining request length (0=last part)
BLOCKDATA	variable	Data block

Response:

<TID> 3900 <LEN> 0017 <OFFSET> [ <ESTREM> <BLOCKDATA> ]

Field	Length	Description
OFFSET	4 bytes	Block offset in response
ESTREM	4 bytes	Estimated remaining length (0=last part)
BLOCKDATA	variable	Response data

Errors:

Code	Description
0010	Request too long
0011	Invalid OFFSET