Tag Archives: ICMP

HOWTO Allow Ping and Traceroute and MTR (ICMP) to Oracle Cloud Vm Instances and Generally Configure the Firewall- A Visual Guide

So you set up your Free Oracle Cloud trial, including the always free tier which give you some free VPS virtual machines ostensibly forever. Or you are migrating your business resources to Oracle Cloud, as it is slightly less evil … Continue reading

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Broken IPv6 on FreeBSD or mtr: Unexpected mtr-packet error with IPv6 on FreeBSD 13, or Other BSD Systems

This error could be caused by a number of things, but in my case it was a simple error in my ipfw rules. My FreeBSD 13 box would work perfectly for IPv4, but fail with this error for IPv6. IPv6 … Continue reading

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