Misbehaving peer v0.15.99 #12343

Just a note for @petertodd in case there is any issue, I safely exited bitcoin-qt v0.15.1 and picked up this in the log file on restart (I have my ban threshold set low):

2018-02-03 12:41:57 receive version message: /Satoshi:0.15.99/: version 70015, blocks=526679, us=62.212.73.141:38050, peer=5
2018-02-03 12:42:03 Misbehaving: seed.btc.petertodd.org peer=5 (0 -> 20) BAN THRESHOLD EXCEEDED
2018-02-03 12:42:03 ERROR: non-continuous headers sequence
2018-02-03 12:42:03 ProcessMessages(headers, 162003 bytes) FAILED peer=5

The blocks= value is significantly higher than the preceding peers.

I presume the DNS name and IP of a seed node are not private.

side note: the only new entry in the ban list is ::/128

You are connecting out over tor. The dnsseed mechanism in that case works by connecting to the named dnsseeds directly. One of the dnsseeds returned to you a host that is some altcoin. Your node noticed it was an altcoin and banned it. I don't think there is anything to report here other than perhaps petertodd might want to put better filtering on his dnsseed.