Unsupported remote target address

[HeptaSean]

@vivid

Aug 08 19:24:59 localhost cardano-node[17673]: [localhos:cardano.node.DnsSubscription:Warning:175] [2022-08-08 19:24:59.68 UTC] Domain: "relays-new.cardano-testnet.iohkdev.io" Unsupported remote target address [2a05:d014:e00:a200:0:1:0:2]:3001
Aug 08 19:24:59 localhost cardano-node[17673]: [localhos:cardano.node.DnsSubscription:Warning:175] [2022-08-08 19:24:59.71 UTC] Domain: "relays-new.cardano-testnet.iohkdev.io" Unsupported remote target address [2600:1f16:fae:3000:0:1:0:3]:3001
Aug 08 19:24:59 localhost cardano-node[17673]: [localhos:cardano.node.DnsSubscription:Warning:175] [2022-08-08 19:24:59.71 UTC] Domain: "relays-new.cardano-testnet.iohkdev.io" Unsupported remote target address [2406:da18:99d:9200:0:1:0:2]:3001

The warnings are all for IPv6 addresses. Is it possible that your node does not have IPv6 connectivity?

Other possibility: It seems that if you configure only an IPv4 address, but not an IPv6 address, then IPv6 is completely disabled:

Domain: "relays-new.cardano-testnet.iohkdev.io" Unsupported remote target address [2a05:d01c:321:2101:0:1:0:3]:3001

mcrio You’re right, this is exactly what happens currently. I added a comment in the documentation a year ago about this. Note : If you want to connect to IPv4 and IPv6 relays, you must either not specify host addresses when starting cardano-node or make sure to specify both an IPv4 and IPv6 host address. I once made a PR to change this behavior so it would allow outbound IPv6 without specifying a host address, but it was not accepted: So currently unfortunately this is expected behavior…