Windows 10 still see IPv6 even though IPv6 is disabled on this VLAN

[134]

My ISP only delegate single /64 subnet to my router, to make SLAAC works i give that whole subnet to VLAN 20 via Track interface. But a Windows 10 PC on VLAN 10 still see its IPv6 addresses, although IPv6 routing isn't working on this VLAN:



pfSense has same problem.

Is this normal behavior? I guess router advertisement somehow works on all interface and not only the interface that got IPv6 enabled.

[Greelan]

Your Windows machine is probably seeing traffic from both VLANs. See this post for possible solutions: https://forum.opnsense.org/index.php?topic=22831.msg109885#msg109885

[Napsterbater]

Make sure the Ethernet port the Windows system is plugged into is not set to receive ANY other VLANs tagged.

Ports plugged into VLAN unaware systems/devices SHOULD NOT be set to tag any additional VLANs, they should ONLY have the "native" VLAN untagged.