IPv6 Lease only lasts 30 seconds? IPv6 unusable as a result.
The last couple days, I noticed an odd behaviour with my Comcast IPv6 address: I have to restart the DHCP client on my router every 30 seconds, or otherwise my IPv6 addresses are not considered valid.
- restart IPv6 DHCP client on my router
- ping from my workstation (behidn the router) works fine.
- after 30 seconds, I start receiving "source address failed ingress/egress policy" ICMP errors from Comcast's router
- I restart my DHCP client, and all is good again.
I had similar issues in the past, where I first needed to start the DHCP client to "activate" my IPv6 addresses. This has been an ongoing pain (for example, if I reboot the cable modem, I also need to restart the DHCP client). For a while, this was fixed, but now this is a new, even worse, behavior rendering IPv6 essentially unusable.
I do have a static IPv6 assignment. Why do I need to jump through all the DHCP hoops? I don't have to do this for IPv4. And the current setup is just broken.