Re: Kernel UDP behavior with missing destinations

[Eric Dumazet]

On 5/16/19 9:05 AM, Eric Dumazet wrote:

> We probably should add a ttl on arp queues.
> 
> neigh_probe() could do that quite easily.
> 

Adam, all you need to do is to increase UDP socket sndbuf.

Either by increasing /proc/sys/net/core/wmem_default

or using setsockopt( ... SO_SNDBUF ... )