Opto 22

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KB86572
"get.src" and "get.scrport" Comm handle commands may return incorrect data when using UDP
Revision:  2.0
Published:  4/6/2017
Applies To
PAC Firmware for:
SNAP-PAC-S1
SNAP-PAC-S1-FM
SNAP-PAC-S1-W
SNAP-PAC-S2
SNAP-PAC-S2-W
SNAP-PAC-R1
SNAP-PAC-R1-FM
SNAP-PAC-R1-W
SNAP-PAC-R1-B
SNAP-PAC-R2
SNAP-PAC-R2-FM
SNAP-PAC-R2-W
Versions
Versions affected:  
All versions of PAC firmware through R9.5d
Problem is fixed in version:  
FW R9.5e

SYMPTOMS

Note: This issue affects only UDP communication handles.

When a strategy uses a UDP communication handle to send a "get.src" or "get.srcport" command with Send Communications Handle Command, the value returned for the source IP address and the source port may be invalid. (This issue does not happen with TCP comm handles.)

WORKAROUND

Use the "Get Number of Characters Waiting" command, and only if the number of characters is greater than zero, send the get.src command.

RESOLUTION

Opto 22 has resolved this issue.

Relevant Downloads
No relevant downloads have been specified.
Questions? Contact Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com

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