我最近升级到了 Unbound 1.13.0，运行时：
sudo systemctl status unbound
我得到以下信息：
● unbound.service - Unbound DNS resolver
Loaded: loaded (/lib/systemd/system/unbound.service; enabled; vendor preset: enabled)
Active: active (running) since Tue 2021-01-05 13:06:59 AEDT; 1min 54s ago
Process: 457 ExecStartPre=/usr/sbin/unbound-anchor -r /etc/unbound/root.hints -a /etc/unbound/root.key (code=exited, status=0/SUCCESS)
Main PID: 484 (unbound)
Tasks: 1 (limit: 2063)
CGroup: /system.slice/unbound.service
└─484 /usr/sbin/unbound -c /etc/unbound/unbound.conf -d
Jan 05 13:06:59 raspberrypi unbound-anchor[457]: [1609812419] libunbound[457:0] error: udp connect failed: Network is unreachable for 199.7.83.42 port 53
Jan 05 13:06:59 raspberrypi unbound-anchor[457]: [1609812419] libunbound[457:0] error: udp connect failed: Network is unreachable for 2001:500:12::d0d port 53
Jan 05 13:06:59 raspberrypi unbound-anchor[457]: [1609812419] libunbound[457:0] error: udp connect failed: Network is unreachable for 2001:500:2::c port 53
Jan 05 13:06:59 raspberrypi unbound-anchor[457]: [1609812419] libunbound[457:0] error: udp connect failed: Network is unreachable for 2001:dc3::35 port 53
Jan 05 13:06:59 raspberrypi unbound-anchor[457]: [1609812419] libunbound[457:0] error: udp connect failed: Network is unreachable for 202.12.27.33 port 53
Jan 05 13:06:59 raspberrypi unbound-anchor[457]: [1609812419] libunbound[457:0] error: udp connect failed: Network is unreachable for 193.0.14.129 port 53
Jan 05 13:06:59 raspberrypi unbound-anchor[457]: [1609812419] libunbound[457:0] error: udp connect failed: Network is unreachable for 2001:500:200::b port 53
Jan 05 13:06:59 raspberrypi unbound-anchor[457]: [1609812419] libunbound[457:0] error: udp connect failed: Network is unreachable for 2001:500:9f::42 port 53
Jan 05 13:06:59 raspberrypi unbound-anchor[457]: [1609812419] libunbound[457:0] error: udp connect failed: Network is unreachable for 199.9.14.201 port 53
Jan 05 13:06:59 raspberrypi unbound-anchor[457]: [1609812419] libunbound[457:0] error: udp connect failed: Network is unreachable for 2001:500:2d::d port 53
这是我的未绑定的配置文件文件可能会为我遇到的问题提供线索。
我刚刚开始学习 Linux 系统，所以可能是我搞错了，我不知道该如何解决。非常感谢您的帮助。
谢谢。