我在azure上有一个测试服务器（ubuntu 16.04 xenial）。我想将此虚拟机绑定多个网卡。我可以从azure门户网站绑定网卡。在vm中，我可以看到（ip a）该网卡和ip 。当我尝试通过第一个网卡（eth0）进入互联网时，它是成功的。但是当我尝试这样做时：
ping 8.8.8.8 -I eth1
无法访问互联网。
在文档中说为您的虚拟机添加静态路由。我尝试使用以下命令，但结果相同：
ip路由通过192.168.1.1 dev eth1 metric 10添加默认值
我也无法添加没有指标的路由 这是我的默认路由表：
root@test:~# route -n
Kernel IP routing table
Destination Gateway Genmask flags Metric Ref Use Iface
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0
168.63.129.16 192.168.0.1 255.255.255.255 UGH 0 0 0 eth0
169.254.169.254 192.168.0.1 255.255.255.255 UGH 0 0 0 eth0
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
root@test:~# ip route add default via 192.168.1.1 dev eth1
RTNETLINK answers: File exists
root@test:~# ip route add default via 192.168.1.1 dev eth1 metric 10
root@test:~# route -n
Kernel IP routing table
Destination Gateway Genmask flags Metric Ref Use Iface
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0
0.0.0.0 192.168.1.1 0.0.0.0 UG 10 0 0 eth1
168.63.129.16 192.168.0.1 255.255.255.255 UGH 0 0 0 eth0
169.254.169.254 192.168.0.1 255.255.255.255 UGH 0 0 0 eth0
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
root@test:~# ping 8.8.8.8 -I eth0
PING 8.8.8.8 (8.8.8.8) from 192.168.0.4 eth0: 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=50 time=2.51 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=50 time=2.10 ms
^C
--- 8.8.8.8 ping statistics ---
2 packets transmitted,2 received,0% packet loss,time 1001ms
rtt min/avg/max/mdev = 2.102/2.308/2.514/0.206 ms
root@test:~# ping 8.8.8.8 -I eth1
PING 8.8.8.8 (8.8.8.8) from 192.168.1.4 eth1: 56(84) bytes of data.
^C
--- 8.8.8.8 ping statistics ---
18 packets transmitted,0 received,100% packet loss,time 17410ms