Network Analyzer: constant flow of ICMP packets to {myip}.ssh

I’m getting a constant flow (about 1 packet per second) of these ICMP network packets (See below). Can anyone enlighten me as to what is happening? My droplet is and the address ( changes in almost every packet. Thanks in advance.

#tcpdump -nv icmp

14:31:28.860085 IP (tos 0xc0, ttl 64, id 4507, offset 0, flags [none], proto ICMP (1), length 80) > ICMP host unreachable - admin prohibited, length 60 IP (tos 0x0, ttl 113, id 31537, offset 0, flags [DF], proto TCP (6), length 52) > Flags [S], cksum 0xb79e (correct), seq 1121351023, win 8192, options [mss 1460,nop,wscale 8,nop,nop,sackOK], length 0

Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Want to learn more? Join the DigitalOcean Community!

Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in Q&A, subscribe to topics of interest, and get courses and tools that will help you grow as a developer and scale your project or business.

Here is a

#tcpdump -nv tcp

20:24:08.884069 IP (tos 0x0, ttl 118, id 4251, offset 0, flags [DF], proto TCP (6), length 48) > Flags [S], cksum 0xe091 (correct), seq 1478118705, win 8192, options [mss 1460,nop,nop,sackOK], length 0

So I guess they are coming in tcp and the response going back out is icmp?

The network capture you provided us shows your droplet sending an ICMP packet to with reason “unreachable - admin prohibited”, presumably in regards to another connection attempt or packet.