@joeyh,

In a way you're correct, but that's not what we were seeing.

My ‘pub’ announces itself as ssb.bornmesh.dk that has two addresses:

• fc2a:e8f2:3f9c:52e5:5c2f:da95:9213:7bd7 # cjdns
• 2001:0470:0028:05b5:dacb:8aff:feba:55d7 # IPv6 tunnel

The 200+ IPv6 address lines are all related to TINC connections to two pubs I have running on VPSes elsewhere. That's why I know that there are at most three IPv6 addresses involved in all those lines.

However, my pub will gladly call out to any other node it can reach – also over routable IPv4 – which is why you can sometimes see it in my sidebar, but I never see any incoming IPv4 connections (I configured it this way deliberately because I don't want my syslog spammed with gazillions of lines with tcplog: port 8008 (ssb) connection from $IPv4).