好的，所以我正在运行一个开放的 vpn 客户端，尝试连接到我的学校使用的服务器，并且我必须修复配置文件中的错误才能让 vpn 在我的 ubuntu 机器上运行。
错误日志：
2021-02-08 01:24:58 TCP/UDP: Preserving recently used remote address: [AF_INET][server-ip]
2021-02-08 01:24:58 UDP link local: (not bound)
2021-02-08 01:24:58 UDP link remote: [AF_INET][server ip]
2021-02-08 01:24:58 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this
2021-02-08 01:25:04 [server] Peer Connection Initiated with [AF_INET][server ip]
2021-02-08 01:25:10 TUN/TAP device tun0 opened
2021-02-08 01:25:10 /sbin/ip link set dev tun0 up mtu 1500
2021-02-08 01:25:10 /sbin/ip link set dev tun0 up
2021-02-08 01:25:10 /sbin/ip addr add dev tun0 10.255.255.36/24
Error: Invalid prefix for given prefix length.
2021-02-08 01:25:10 ERROR: Linux route add command failed: external program exited with error status: 2
Error: Invalid prefix for given prefix length.
2021-02-08 01:25:10 ERROR: Linux route add command failed: external program exited with error status: 2
Error: Invalid prefix for given prefix length.
2021-02-08 01:25:10 ERROR: Linux route add command failed: external program exited with error status: 2
Error: Invalid prefix for given prefix length.
2021-02-08 01:25:10 ERROR: Linux route add command failed: external program exited with error status: 2
2021-02-08 01:25:10 Initialization Sequence Completed
配置文件：
client
dev tun
proto udp
remote [server ip]
resolv-retry infinite
remote-cert-tls server
nobind
persist-key
persist-tun
cipher AES-256-CFB
data-ciphers AES-256-CFB
auth SHA256
auth-user-pass
route 192.168.10.0 255.255.255.0
route 192.168.20.0 255.255.255.0
route 192.168.30.0 255.255.255.0
我尝试过推送“路由...”，但得到的响应相同，删除路由命令也会出现同样的错误消息。更改路由（包括添加 /24）只会给我带来更多错误。
另外，vpn 当前是否正在运行？谢谢。
编辑：使用动词 3 运行会在日志末尾给出以下内容：
2021-02-09 17:51:06 /sbin/ip addr add dev tun0 10.255.255.36/24
2021-02-09 17:51:06 /sbin/ip route add 192.168.10.0/24 via 10.255.255.1
2021-02-09 17:51:06 /sbin/ip route add 192.168.20.0/24 via 10.255.255.1
2021-02-09 17:51:06 /sbin/ip route add 192.168.30.0/24 via 10.255.255.1
2021-02-09 17:51:06 /sbin/ip route add 192.168.1.1/24 via 10.255.255.1
Error: Invalid prefix for given prefix length.
2021-02-09 17:51:06 ERROR: Linux route add command failed: external program exited with error status: 2
2021-02-09 17:51:06 /sbin/ip route add 192.168.10.1/24 via 10.255.255.1
Error: Invalid prefix for given prefix length.
2021-02-09 17:51:06 ERROR: Linux route add command failed: external program exited with error status: 2
2021-02-09 17:51:06 /sbin/ip route add 192.168.20.1/24 via 10.255.255.1
Error: Invalid prefix for given prefix length.
2021-02-09 17:51:06 ERROR: Linux route add command failed: external program exited with error status: 2
2021-02-09 17:51:06 /sbin/ip route add 192.168.30.1/24 via 10.255.255.1
Error: Invalid prefix for given prefix length.
2021-02-09 17:51:06 ERROR: Linux route add command failed: external program exited with error status: 2
2021-02-09 17:51:06 /sbin/ip route add 192.168.11.0/24 via 10.255.255.1
2021-02-09 17:51:06 Initialization Sequence Completed
^C2021-02-09 17:53:08 event_wait : Interrupted system call (code=4)
2021-02-09 17:53:08 /sbin/ip route del 192.168.10.0/24
2021-02-09 17:53:08 /sbin/ip route del 192.168.20.0/24
2021-02-09 17:53:08 /sbin/ip route del 192.168.30.0/24
2021-02-09 17:53:08 /sbin/ip route del 192.168.1.1/24
Error: Invalid prefix for given prefix length.
2021-02-09 17:53:08 ERROR: Linux route delete command failed: external program exited with error status: 2
2021-02-09 17:53:08 /sbin/ip route del 192.168.10.1/24
Error: Invalid prefix for given prefix length.
2021-02-09 17:53:08 ERROR: Linux route delete command failed: external program exited with error status: 2
2021-02-09 17:53:08 /sbin/ip route del 192.168.20.1/24
Error: Invalid prefix for given prefix length.
2021-02-09 17:53:08 ERROR: Linux route delete command failed: external program exited with error status: 2
2021-02-09 17:53:08 /sbin/ip route del 192.168.30.1/24
Error: Invalid prefix for given prefix length.
2021-02-09 17:53:08 ERROR: Linux route delete command failed: external program exited with error status: 2
2021-02-09 17:53:08 /sbin/ip route del 192.168.11.0/24
2021-02-09 17:53:08 Closing TUN/TAP interface
2021-02-09 17:53:08 /sbin/ip addr del dev tun0 10.255.255.36/24
2021-02-09 17:53:08 SIGINT[hard,] received, process exiting
因此，显然它试图在末尾添加这些配置文件中没有的奇怪路由。为什么它尝试使用 1 进行连接？
运行动词 5 并没有给我带来更多，除了：
WRR2021-02-09 18:01:46 us=534750 PUSH: Received control message: 'PUSH_REPLY,route 192.168.1.1 255.255.255.0,route 192.168.10.1 255.255.255.0,route 192.168.20.1 255.255.255.0,route 192.168.30.1 255.255.255.0,dhcp-option DOMAIN [school_url],route 192.168.11.0 255.255.255.0 10.255.255.1,route-gateway 10.255.255.1,topology subnet,ping 10,ping-restart 60,ifconfig 10.255.255.36 255.255.255.0,peer-id 1'
配置文件
enp2s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 5c:f9:dd:44:07:cc txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 6780 bytes 718813 (718.8 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 6780 bytes 718813 (718.8 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp1s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.141 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 2602:304:cd49:ce89:7339:c912:850e:503c prefixlen 64 scopeid 0x0<global>
inet6 2602:304:cd49:ce89:30ac:f9d6:9b72:9fa8 prefixlen 64 scopeid 0x0<global>
inet6 fe80::6dbb:3d0f:ff63:d0da prefixlen 64 scopeid 0x20<link>
ether 68:5d:43:97:7b:8d txqueuelen 1000 (Ethernet)
RX packets 348014 bytes 368671357 (368.6 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 232910 bytes 38136412 (38.1 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0