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I recently ran into an odd issue with IPv6 connectivity in my home network. During a lengthy outage, I decided to redo some of my network configurations. As part of this change, I also reorganized my IPv6 setup, relying more on DHCPv6 and less on router advertisements to configure IPv6 addresses. Overall, this worked well. My Macs had no issues connecting to IPv6. However, the Linux host I use to alert me of network connectivity issues could not "ping" the test host via IPv6.