PING ipv6.tsinghua.edu.cn (166.111.8.205): 56 data bytes
64 bytes from 166.111.8.205: icmp_seq=0 ttl=61 time=2.535 ms
64 bytes from 166.111.8.205: icmp_seq=1 ttl=61 time=2.399 ms
...
登录“ipv6.tsinghua.edu.cn”: 显示使用IPV4访问网站
ping6 ipv6.tsinghua.edu.cn:不通过,no space left,没能理解成因
PING6(56=40+8+8 bytes) 2402:f000:1:1501:200:5efe:b7ac:dfe6 --> 2402:f000:1:881::8:205
ping6: sendmsg: No buffer space available
ping6: wrote ipv6.tsinghua.edu.cn 16 chars, ret=-1
ping6: sendmsg: No buffer space available
ping6: wrote ipv6.tsinghua.edu.cn 16 chars, ret=-1
...
sudo
运行ping ipv6.tsinghua.edu.cn
:通过(用了IPV4地址)ping6 ipv6.tsinghua.edu.cn
:不通过,no space left,没能理解成因