WAN_DHCP6 Pending/Unknown

beremonavabi

The only thing I've found on this is:

and its related (rejected) bug report:

https://redmine.pfsense.org/issues/10565

It's an old thread in the 2.5 Development Snapshots. But, I'm on the currently released 2.4.5-RELEASE-p1 (amd64) and have been seeing this same problem for months.

Unlike that thread, I'm on Cox instead of Telus.

It's not a very useful description of the problem, but in a nutshell, after some period of time the WAN_DHCP6 status in the Gateways section of the Dashboard will say:

"WAN_DHCP6 Pending Pending Pending Unknown
~"

The only way I've found to clear it is to either reboot the SG-4860 or go to Interfaces > WAN > SAVE > Apply Changes.

The WAN_DHCP6 entry will then revert to something normal, but will, at some point, fail back to that Pending/Unknown state.

This is how the WAN interface is configured:

IPv4 Configuration Type:  DHCP
IPv6 Configuration Type:  DHCP6
DHCPv6 Prefix Delegation size:  56
Send IPv6 prefix hint
Block private networks and loopback addresses
Block bogon networks

From the previous thread, I'm unsure if the problem is supposed to be resolved. So, I thought I'd report it here.

Traveller

@beremonavabi I'm in the exact same boat with Comcast as the ISP.

Trigger seems to be a loss of upstream connection. IPv4 recovers, IPv6 does not.

Remedy is to Save WAN and Apply Changes. No actual change is required.

If I could figure out what part of Applying Changes fixes the issue, I could automate recovery.