Ticket #8136: Reconfigure dpinger when IPv6 reconnects
When SLAAC interface is disconnected and reconnected, rc.newwanipv6 is never executed because dhcp6c is the only trigger for that. Add a workaround on rc.linkup to force it to run in these cases so dpinger is configured and gateway status works
Related issues
Bug #8136: dpinger for WAN DHCPv6 gets fails to update gateway IP
Ticket #8136: Reconfigure dpinger when IPv6 reconnects
When SLAAC interface is disconnected and reconnected, rc.newwanipv6 is
never executed because dhcp6c is the only trigger for that. Add a
workaround on rc.linkup to force it to run in these cases so dpinger is
configured and gateway status works