LWIP STM32F4 allocate a single udp_pcb per connected device?

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Sorry for asking an obvious question...

LWIP documentation describes a udp_pcb as "Creates a new UDP pcb which can be used for UDP communication."

https://lwip.fandom.com/wiki/Raw/UDP

When connecting to multiple devices with an IP address each using UDP protocol with LWIP, is it expected that you allocate a udp_pcb struct per connected device? Or try and re-use a single UDP protocol control block.

E.g. One Device connecting to 5 other devices:

therefore create five udp_pcb objects?

or 

re-use one udp_pcb but send to different IP addresses? 

Thanks in advance.

[STea · Accepted solution]

Hello @###### ,

I recommend that you use a udp_pcb per connection.
Regards

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@STea

Thanks.