jesky: 网络环境：
北京移动宽带，公网 IPv6+内网 IPv4
香港宽频 HKBN ，公网 IPv4
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配置：
北京 - OpenWRT+ZeroTier
香港 - 梅林+ZeroTier
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问题：
ZeroTier 配置并连接成功，从香港 ping 北京的路由，延迟并不高，但是会丢包，如下：

Request timeout for icmp_seq 16
64 bytes from 192.168.6.1: icmp_seq=17 ttl=63 time=52.806 ms
64 bytes from 192.168.6.1: icmp_seq=18 ttl=63 time=52.549 ms
Request timeout for icmp_seq 19
Request timeout for icmp_seq 20
Request timeout for icmp_seq 21
64 bytes from 192.168.6.1: icmp_seq=22 ttl=63 time=52.627 ms
64 bytes from 192.168.6.1: icmp_seq=23 ttl=63 time=56.309 ms
Request timeout for icmp_seq 24
64 bytes from 192.168.6.1: icmp_seq=25 ttl=63 time=51.956 ms
Request timeout for icmp_seq 26
64 bytes from 192.168.6.1: icmp_seq=27 ttl=63 time=51.317 ms
64 bytes from 192.168.6.1: icmp_seq=28 ttl=63 time=66.857 ms
64 bytes from 192.168.6.1: icmp_seq=29 ttl=63 time=52.302 ms
Request timeout for icmp_seq 30
64 bytes from 192.168.6.1: icmp_seq=31 ttl=63 time=52.931 ms
Request timeout for icmp_seq 32
Request timeout for icmp_seq 33
64 bytes from 192.168.6.1: icmp_seq=34 ttl=63 time=56.980 ms
Request timeout for icmp_seq 35
64 bytes from 192.168.6.1: icmp_seq=36 ttl=63 time=54.604 ms
Request timeout for icmp_seq 37
64 bytes from 192.168.6.1: icmp_seq=38 ttl=63 time=50.495 ms
Request timeout for icmp_seq 39
Request timeout for icmp_seq 40
Request timeout for icmp_seq 41
64 bytes from 192.168.6.1: icmp_seq=42 ttl=63 time=54.001 ms
Request timeout for icmp_seq 43
64 bytes from 192.168.6.1: icmp_seq=44 ttl=63 time=56.311 ms
Request timeout for icmp_seq 45
Request timeout for icmp_seq 46
64 bytes from 192.168.6.1: icmp_seq=47 ttl=63 time=57.998 ms
64 bytes from 192.168.6.1: icmp_seq=48 ttl=63 time=58.681 ms
Request timeout for icmp_seq 49
64 bytes from 192.168.6.1: icmp_seq=50 ttl=63 time=107.714 ms
Request timeout for icmp_seq 51
Request timeout for icmp_seq 52
Request timeout for icmp_seq 53
Request timeout for icmp_seq 54
64 bytes from 192.168.6.1: icmp_seq=55 ttl=63 time=59.755 ms
Request timeout for icmp_seq 56

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本质就是不可用的状态，有没有解法呢？