I've got no IPv6 configured on my network at all. My ISP (Shaw Communications residential Cable Internet) doesn't support IPv6 at all either as far as I know.

My public node runs on an Ubuntu VM with no configured IPv6 to the best of my knowledge, and goes through a virtual Mikrotik router with no IPv6 support.

On my Windows 10 workstation I run a node with the following configuration:

• dbcache=256
• connect=192.168.193.33
• disablewallet=1
• listen=1
• server=1
• splash=0
• # dns=0
• upnp=0
• daemon=0

Somehow my Windows 10 node is getting a pair of persistent connections from IPv6 nodes with User Agent /Satoshi:0.9.99/

[2a00:1398:4:2a00::a1]:55950 (node id: 7) via [2001:0:5ef5:79fb:2c47:33c:b9bb:b676]:8333

[2a00:1398:4:2a00::a5]:59856 (node id: 8) via [2001:0:5ef5:79fb:2c47:33c:b9bb:b676]:8333

Can anyone shed any light on where these are coming from and how they're getting to me?