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如何统计虚拟机的流量？

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如何统计虚拟机的流量？

我有一个使用 Ubuntu Server 18.04 的虚拟机管理程序。有一些虚拟机由 VirtualBox 提供支持。我已经设置了 iptables 和 iproute2，以便虚拟机上的 Internet 可以通过“仅主机适配器”工作

vboxnet0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.11.11.11  netmask 255.255.255.255  broadcast 0.0.0.0
        inet6 fe80::800:27ff:fe00:0  prefixlen 64  scopeid 0x20<link>
        ether 0a:00:27:00:00:00  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 72648  bytes 3266388 (3.2 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vboxnet1: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 10.11.11.11  netmask 255.255.255.255  broadcast 0.0.0.0
        ether 0a:00:27:00:00:01  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

vboxnet2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.11.11.11  netmask 255.255.255.255  broadcast 0.0.0.0
        inet6 fe80::800:27ff:fe00:2  prefixlen 64  scopeid 0x20<link>
        ether 0a:00:27:00:00:02  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 92219  bytes 10396788 (10.3 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

我什至可以嗅探虚拟机的流量

root@hypervisor:~# tcpdump -n -i vboxnet0 port 8642
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on vboxnet0, link-type EN10MB (Ethernet), capture size 262144 bytes
12:31:43.676271 IP 188.17.218.126.1971 > 78.29.xx.xx.8642: Flags [P.], seq 3363265001:3363265037, ack 1117219726, win 1026, length 36
12:31:43.676407 IP 78.29.xx.xx.8642 > 188.17.218.126.1971: Flags [.], ack 36, win 501, length 0
12:31:48.673973 IP 188.17.218.126.1971 > 78.29.xx.xx.8642: Flags [P.], seq 36:72, ack 1, win 1026, length 36
12:31:48.674050 IP 78.29.xx.xx.8642 > 188.17.218.126.1971: Flags [.], ack 72, win 501, length 0
12:31:53.675466 IP 188.17.218.126.1971 > 78.29.xx.xx.8642: Flags [P.], seq 72:108, ack 1, win 1026, length 36
12:31:53.675547 IP 78.29.xx.xx.8642 > 188.17.218.126.1971: Flags [.], ack 108, win 501, length 0
^C
6 packets captured
6 packets received by filter
0 packets dropped by kernel

78.29.xx.xx 是虚拟机

但是，如果与 VM 相关，hypervisor 的 ifconfig 不会统计流量

有没有可以统计所有流量的包？

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