This seems to be a copy-paste error. The `GNRCICMPv6EchoParser` parse function parses of course the output of the `ping6` command, not the `nib neigh show` command.
This seems to be a copy-paste error. The `GNRCICMPv6EchoParser` parse function parses of course the output of the `ping6` command, not the `nib neigh show` command.