Skip to content

Instantly share code, notes, and snippets.

@ravens
Created September 25, 2018 05:36
Show Gist options
  • Save ravens/236875db251b781f8650c0c6b88e26ba to your computer and use it in GitHub Desktop.
Save ravens/236875db251b781f8650c0c6b88e26ba to your computer and use it in GitHub Desktop.
checksum error on Scaleway ARM server
tcpdump -i eth0 port 4500 -vvv -nn
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes
07:31:14.463350 IP (tos 0x0, ttl 54, id 0, offset 0, flags [DF], proto UDP (17), length 160)
REDACTEDIP1.4500 > REDACTEDIP2.4500: [bad udp cksum 0x258c -> 0x5b7d!] UDP-encap: ESP(spi=0xc4f6f449,seq=0x14), length 132
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment