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docs: IPv6 proven end to end (CAMPAIGN-LOG, BRINGUP item 21)

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With the access point's RA and DHCPv6 off, the board took the firewall's
lease; every service answered on the global address from another VLAN
and the board reached the IPv6 WAN gateway.

Docs only; no catalog consequence.
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ScottW514
2026-08-24 16:42:19 -04:00
parent 76906f3aef
commit dc43ccf3bf
2 changed files with 13 additions and 5 deletions
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docs/BRINGUP.md
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@@ -1560,11 +1560,12 @@ Open items only. Anything closed is in `CAMPAIGN-LOG.md`.
quiet way) and the last stray dmesg line is gone. The missing GUA is a
network matter, diagnosed (CAMPAIGN-LOG 2026-08-24, "the second DHCPv6
responder"): the firewall advertises an address, but an access point on
the bench VLAN still runs its own RA and DHCPv6 server, its Advertise
arrives first with nothing to give, and busybox's `udhcpc6` stays with
the first Advertise it sees. Disabling RA and DHCPv6 on that access
point (as on the other two) is the fix; nothing on the board changes.
Then the item-16 drill and the campaign.
the bench VLAN still ran its own RA and DHCPv6 server, its Advertise
arrived first with nothing to give, and busybox's `udhcpc6` stays with
the first Advertise it sees. With that access point's RA and DHCPv6
disabled (as on the other two) the board took the firewall's lease, and
every service answered on the global address from another VLAN: IPv6 is
on end to end. Left: the item-16 drill and the campaign.
**Deliberately not gated:** an armed GRBL job after an underrun cuts at the
stale origin unless homing is required (GRBL mode permits unhomed cutting; the
docs/CAMPAIGN-LOG.md
+7
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@@ -3872,6 +3872,13 @@ NDP-Proxy disabled, which is the setting that belongs on all three. The
ULA the board carried all along was that access point's. Nothing on the
board needs to change; the network side owns the fix.
With RA and DHCPv6 disabled on that access point, the next Solicit took
the firewall's lease: a global address on wlan0 (a /128 with the lease
as its lifetime, renewed on schedule), sshd, grblHAL TCP:23, forgectrl
and forgetest all answered on it from a host on a different VLAN, and
the board reached the IPv6 WAN gateway. IPv6 is on end to end; the
stale ULA ages out with its own lifetime.
## Superseded status notes
### Shared machine services — remaining polish, as listed 2026-08-13