我在MacBook上查看IP地址，en0是192.168.3.10：
% ip addr
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet 127.0.0.1/8 lo0
inet6 ::1/128
inet6 fe80::1/64 scopeid 0x1
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether 3c:15:c2:bd:8d:a0
inet6 fe80::10ae:f240:25e5:a6ad/64 secured scopeid 0x4
inet 192.168.3.10/24 brd 192.168.3.255 en0
awdl0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1484
ether 0a:a3:4f:73:8c:94
inet6 fe80::8a3:4fff:fe73:8c94/64 scopeid 0x9
llw0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether 0a:a3:4f:73:8c:94
inet6 fe80::8a3:4fff:fe73:8c94/64 scopeid 0xa
utun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1380
inet6 fe80::4992:863d:5b8c:4013/64 scopeid 0xb
utun1: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 2000
inet6 fe80::1aa6:766c:90a9:18f5/64 scopeid 0xc
然后啟動一個Debian容器，eth0是192.168.65.3：
% docker run -it --net=host 1510e8501783
root@docker-desktop:/# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 brd 127.255.255.255 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 02:50:00:00:00:01 brd ff:ff:ff:ff:ff:ff
inet 192.168.65.3/24 brd 192.168.65.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::50:ff:fe00:1/64 scope link
valid_lft forever preferred_lft forever
3: tunl0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000
link/ipip 0.0.0.0 brd 0.0.0.0
4: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN group default qlen 1000
link/tunnel6 :: brd ::
5: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
link/ether 02:42:15:18:42:93 brd ff:ff:ff:ff:ff:ff
inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
valid_lft forever preferred_lft forever
inet6 fe80::42:15ff:fe18:4293/64 scope link
valid_lft forever preferred_lft forever
都使用 --net=host 選項了，為什么IP地址還不一樣？
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標籤：Docker
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