[lwip-users] Setting the IP_DF flag on my UDP socket not working

[jill_adelstein]

Hello,
I am working on an application where
I am streaming data over UDP using lwip sendto().I am trying to set the
don't fragment flag on my UDP socket as follows:

int enable = 1;
setsockopt(sock, SOL_SOCKET, IP_DF, reinterpret_cast<const
void *>(&enable), static_cast<socklen_t>(sizeof enable));

When I look at my Wireshark capture,
however, I see that the Don't fragment Flag is "Not set". Am
I doing something wrong?  I am using a Xilinx zynq 7000 Ultrascale
plus with the FreeRTOS bsp.
Thanks.
Jill
__________________________________________________________________________
Jill Adelstein
| Firmware Engineer
|
MeterSystems R&D - Boise
Schweitzer
Engineering Laboratories Inc.

2350 NE Hopkins Court | Pullman, WA 99163
| 509.334.4917 | address@hidden
SEL: www.selinc.com