ubuntu上未连接VPN连接:焦点docker容器

ubuntu上未连接VPN连接:焦点docker容器,docker,ubuntu,vpn,Docker,Ubuntu,Vpn,我有一台机器(Ubuntu20.04)连接到VPN,我尝试在我的VPN上ping主机。它在ubuntu:focal容器上不起作用 docker run -it --rm ubuntu:focal bash ping host-on-vpn ping: host-on-vpn: Name or service not known 但它在阿尔卑斯山集装箱上运行良好 docker run -it --rm alpine:latest bash ping host-on-vpn PING host-o

我有一台机器(Ubuntu20.04)连接到VPN,我尝试在我的VPN上ping主机。它在ubuntu:focal容器上不起作用

docker run -it --rm ubuntu:focal bash
ping host-on-vpn
ping: host-on-vpn: Name or service not known
但它在阿尔卑斯山集装箱上运行良好

docker run -it --rm alpine:latest bash
ping host-on-vpn
PING host-on-vpn (10.7.20.55): 56 data bytes
64 bytes from 10.7.20.55: seq=0 ttl=101 time=2.901 ms
64 bytes from 10.7.20.55: seq=1 ttl=101 time=3.330 ms
64 bytes from 10.7.20.55: seq=2 ttl=101 time=3.203 ms
我错过什么了吗


谢谢

如果尝试ping
10.7.20.55
而不是主机名,会发生什么?