How to set up UDP on Linux?

Question

linux

There is a regular server on debian 7, iptables are empty.
From another server, we execute a command that traces via UDP and sends 10 requests every second:

mtr -u -i 0.1 188.93.19.242

and get about 80% loss. If you send one request every second, then everything is ok. Losses begin even if 3-4 requests are sent per second.
When sending such requests to a server with freebsd, there is no such loss.
Attention, the question is, what is the reason and what needs to be tweaked in linux to get rid of this?

Answer 1

makes a trace over UDP and sends 10 ICMP requests every second

I didn't understand if the trace is using UDP, what does ICMP requests have to do with it (not Time Exceeded responses)?
On the topic, see my opinion on a similar question:
Check kernel options:

/proc/sys/net/ipv4/icmp_ratelimit
/proc/sys/net/ipv4/icmp_ratemask
/proc/sys/net/ipv4/icmp_msgs_per_sec
/proc/sys/net/ipv4/icmp_msgs_burst

Answer 2

By default, there are no such problems on the server, see the firewall and errors on the interface