我在具有三個 NIC 的 Hyper-V 主機上有一個虛擬 Ubuntu Server (14.04) VM
- eth0 橋接到外部網路
- eth1 和 eth2 連接到專用虛擬交換機
目的是讓虛擬機器使用 eth1 和 eth2 與自身通信，同時流量仍然透過交換器發送 - 這樣就可以轉發/嗅探
我相信我已經為每個介面設置了正確的設置，並且也遵循了此處的帖子 -一個網關設定兩個IP位址？
當我嘗試從一個接口 ping 到另一個 tcpdump 時，顯示 ARP 請求到達另一個接口，但它們從未得到回應：
$ ping -b -I eth1 10.0.0.6
PING 10.0.0.6 (10.0.0.6) from 10.0.0.5 eth1: 56(84) bytes of data.
From 10.0.0.5 icmp_seq=1 Destination Host Unreachable
From 10.0.0.5 icmp_seq=2 Destination Host Unreachable
From 10.0.0.5 icmp_seq=3 Destination Host Unreachable
From 10.0.0.5 icmp_seq=4 Destination Host Unreachable
From 10.0.0.5 icmp_seq=5 Destination Host Unreachable
From 10.0.0.5 icmp_seq=6 Destination Host Unreachable
^C
--- 10.0.0.6 ping statistics ---
7 packets transmitted, 0 received, +6 errors, 100% packet loss, time 6018ms
pipe 4
$ tcpdump -i eth2
21:27:19.666738 ARP, Request who-has 10.0.0.6 tell 10.0.0.5, length 28
21:27:20.666636 ARP, Request who-has 10.0.0.6 tell 10.0.0.5, length 28
...
我可以 ping 到/從虛擬交換器上的其他設備...
更奇特的是，我可以透過 SSH 從另一個接口連接到任一接口，而該接口的流量不會顯示在 tcpdump 上。
$ ssh -i eth1[電子郵件受保護]
我想做的事情可能嗎？
一些額外的資訊：
$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:15:5d:0e:f9:09
inet addr:172.16.33.225 Bcast:172.16.39.255 Mask:255.255.248.0
inet6 addr: fe80::215:5dff:fe0e:f909/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:480545 errors:0 dropped:7810 overruns:0 frame:0
TX packets:10662 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:50354580 (50.3 MB) TX bytes:1754707 (1.7 MB)
eth1 Link encap:Ethernet HWaddr 00:15:5d:0e:f9:0a
inet addr:10.0.0.5 Bcast:10.255.255.255 Mask:255.0.0.0
inet6 addr: fe80::215:5dff:fe0e:f90a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:107 errors:0 dropped:0 overruns:0 frame:0
TX packets:506 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:9293 (9.2 KB) TX bytes:100827 (100.8 KB)
eth2 Link encap:Ethernet HWaddr 00:15:5d:0e:f9:0b
inet addr:10.0.0.6 Bcast:10.255.255.255 Mask:255.0.0.0
inet6 addr: fe80::215:5dff:fe0e:f90b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:347 errors:0 dropped:0 overruns:0 frame:0
TX packets:88 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:20373 (20.3 KB) TX bytes:6448 (6.4 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:5523 errors:0 dropped:0 overruns:0 frame:0
TX packets:5523 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2173284 (2.1 MB) TX bytes:2173284 (2.1 MB)
$ cat /etc/網路/接口
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet static
address 172.16.33.225
netmask 255.255.248.0
...
auto eth1
iface eth1 inet static
address 10.0.0.5
network 10.0.0.0
netmask 255.0.0.0
broadcast 10.255.255.255
up ip route add 10.0.0.0/8 dev eth1 src 10.0.0.5 table eth1table
up ip route add default via 0.0.0.0 dev eth1 table eth1table
up ip rule add from 10.0.0.5 table eth1table
up ip route add 10.0.0.0/8 dev eth1 src 10.0.0.5
auto eth2
iface eth2 inet static
address 10.0.0.6
network 10.0.0.0
netmask 255.0.0.0
broadcast 10.255.255.255
up ip route add 10.0.0.0/8 dev eth2 src 10.0.0.6 table eth2table
up ip route add default via 0.0.0.0 dev eth2 table eth2table
up ip rule add from 10.0.0.6 table eth2table
up ip route add default via 0.0.0.0 dev eth2
up ip route add 10.0.0.0/8 dev eth2 src 10.0.0.6
任何幫助將不勝感激！
答案1
不，這是不可能的：發送到本機的資料包由本機電腦處理，而不是轉送。