If there is no IPv4 address, perhaps you should add INO4 to this line:
NDL ICM,IBN,PING,INA:brorabbit.g0x.ru,U,NPK,ENC
Also: you advertise PING. I send a ping to 2:460/5858 and got a response from 2:460/58. Should be a trace response, but that is not entirely clear. I got no response from 460/5858.
The address in de INA flag is not correct. It leads to 460/56, not 460/5858.
So what is the plan? Presently it is listed in the daily nodelist as Pvt without contact information. Will it become a fully fledged node so that I can add it to the list of IPv6 nodes? And maybe reach 100 by the end of the year?