我在 Ubuntu 中设置了一个带有 3 个网卡的 Virtual Box。如何配置这 3 个网卡，以便能够成功 ping 63 到 189 和 192 之间的网络？
以下是我的设置细节：
ifconfig -a:
eth0 Link encap:Ethernet HWaddr 08:00:27:81:63:b9
inet addr:10.0.10.63 Bcast:10.0.10.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fe81:63b9/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:92867 errors:0 dropped:1871 overruns:0 frame:0
TX packets:1240 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:10881093 (10.8 MB) TX bytes:137882 (137.8 KB)
eth1 Link encap:Ethernet HWaddr 08:00:27:5f:24:13
inet addr:10.0.10.192 Bcast:10.0.10.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fe5f:2413/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:86057 errors:0 dropped:10 overruns:0 frame:0
TX packets:134 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:9619445 (9.6 MB) TX bytes:15193 (15.1 KB)
eth2 Link encap:Ethernet HWaddr 08:00:27:a2:ec:03
inet addr:10.0.10.189 Bcast:10.0.10.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fea2:ec03/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:85404 errors:0 dropped:2 overruns:0 frame:0
TX packets:64 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:9534726 (9.5 MB) TX bytes:10143 (10.1 KB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:58 errors:0 dropped:0 overruns:0 frame:0
TX packets:58 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:5592 (5.5 KB) TX bytes:5592 (5.5 KB)
route:
Destination Gateway Genmask Flags Metric Ref Use Iface
default 10.0.10.1 0.0.0.0 UG 0 0 0 eth1
10.0.10.0 * 255.255.255.0 U 0 0 0 eth0
10.0.10.0 * 255.255.255.0 U 1 0 0 eth2
10.0.10.0 * 255.255.255.0 U 1 0 0 eth1
link-local * 255.255.0.0 U 1000 0 0 eth0
ping:
bert@bert-VirtualBox:~/git/southwest_mw/lib/policy/src/main/java/com/istuary/policy$ ping 10.0.10.63
PING 10.0.10.63 (10.0.10.63) 56(84) bytes of data.
64 bytes from 10.0.10.63: icmp_seq=1 ttl=64 time=0.042 ms
64 bytes from 10.0.10.63: icmp_seq=2 ttl=64 time=0.058 ms
^C
--- 10.0.10.63 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.042/0.050/0.058/0.008 ms
bert@bert-VirtualBox:~/git/southwest_mw/lib/policy/src/main/java/com/istuary/policy$ ping 10.0.10.189
PING 10.0.10.189 (10.0.10.189) 56(84) bytes of data.
64 bytes from 10.0.10.189: icmp_seq=1 ttl=64 time=0.053 ms
64 bytes from 10.0.10.189: icmp_seq=2 ttl=64 time=0.054 ms
^C
--- 10.0.10.189 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.053/0.053/0.054/0.007 ms
bert@bert-VirtualBox:~/git/southwest_mw/lib/policy/src/main/java/com/istuary/policy$ ping 10.0.10.192
PING 10.0.10.192 (10.0.10.192) 56(84) bytes of data.
64 bytes from 10.0.10.192: icmp_seq=1 ttl=64 time=0.026 ms
64 bytes from 10.0.10.192: icmp_seq=2 ttl=64 time=0.161 ms
^C
--- 10.0.10.192 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.026/0.093/0.161/0.068 ms
bert@bert-VirtualBox:~/git/southwest_mw/lib/policy/src/main/java/com/istuary/policy$ ping -I eth0 10.0.10.192
PING 10.0.10.192 (10.0.10.192) from 10.0.10.63 eth0: 56(84) bytes of data.
From 10.0.10.63 icmp_seq=1 Destination Host Unreachable
From 10.0.10.63 icmp_seq=2 Destination Host Unreachable
From 10.0.10.63 icmp_seq=3 Destination Host Unreachable
^C
--- 10.0.10.192 ping statistics ---
4 packets transmitted, 0 received, +3 errors, 100% packet loss, time 3009ms
pipe 3
bert@bert-VirtualBox:~/git/southwest_mw/lib/policy/src/main/java/com/istuary/policy$ ping -I eth0 10.0.10.189
PING 10.0.10.189 (10.0.10.189) from 10.0.10.63 eth0: 56(84) bytes of data.
From 10.0.10.63 icmp_seq=1 Destination Host Unreachable
From 10.0.10.63 icmp_seq=2 Destination Host Unreachable
From 10.0.10.63 icmp_seq=3 Destination Host Unreachable
^C
--- 10.0.10.189 ping statistics ---
4 packets transmitted, 0 received, +3 errors, 100% packet loss, time 3011ms
pipe 3