dpinger - Change in ISP link-local IPv6 address drops connectivity
When connecting via PPPoE on a DSL connection, the IPv6 link-local address on an ISP's router may change periodically. This may occur with or without a drop in the PPPoE connection. Unfortunately, dpinger does not communicate with the new IPv6 link-local address at the ISP.
Disabling gateway monitoring action does not mitigate this issue. Disable gateway monitoring must be checked for IPv6 connectivity to be maintained in the event of an IPv6 link-local address change at the ISP's router.
Updated by Kristopher Kolpin about 3 years ago
I spoke with my ISP. It appears as part of a load balancing script on their end the PPPoE session will be dropped and redirected to another authentication server. During this process my static IPv4 and static IPv6 (global) stay the same. However, the IPv6 link-local address (ISP) will be different if the authentication server is different. As I said above, pfSense 2.4.2 used to handle this properly if I disabled gateway monitoring and gateway monitoring action.