我有2個系統。我在它們兩個上運行ifconfig。我通過移動熱點的無線網絡訪問互聯網。我正在粘貼兩者的ifconfig輸出。我猜這兩個IP是127.0.0.1(雖然我使用2個不同的手機)。我需要使用tcp/ip套接字在它們之間進行通信。請確認我。如果我能找到一個c程序來找到自己的IP地址,那更好。如果兩個IP相同,則需要更改其IP地址。爲什麼兩臺設備的IP相同?他們如何訪問互聯網?我的目標設備將是2個帶SIM卡的嵌入式設備,使用gprs進行套接字通信。ifconfig->這是我的IP地址給TCP/IP套接字的結果
System1->
enp2s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 2c:56:dc:29:7f:66 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
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 233 bytes 15817 (15.8 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 233 bytes 15817 (15.8 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.43.26 netmask 255.255.255.0 broadcast 192.168.43.255
inet6 2405:204:f184:563e:e0f8:7b7e:3ea4:244b prefixlen 64 scopeid 0x0<global>
inet6 fe80::e9a9:9f55:2fd4:2255 prefixlen 64 scopeid 0x20<link>
inet6 2405:204:f184:563e:f2da:16c6:1bd5:15ee prefixlen 64 scopeid 0x0<global>
ether 80:a5:89:3d:85:3b txqueuelen 1000 (Ethernet)
RX packets 403 bytes 307722 (307.7 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 945 bytes 134915 (134.9 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
系統2->
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:289 errors:0 dropped:0 overruns:0 frame:0
TX packets:289 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:26628 (26.6 KB) TX bytes:26628 (26.6 KB)
wlan0 Link encap:Ethernet HWaddr e4:02:9b:84:a4:72
inet addr:192.168.43.217 Bcast:192.168.43.255 Mask:255.255.255.0
inet6 addr: 2405:204:f184:563e:5d6b:9906:ff66:ab2c/64 Scope:Global
inet6 addr: 2405:204:f184:563e:e602:9bff:fe84:a472/64 Scope:Global
inet6 addr: fe80::e602:9bff:fe84:a472/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1659 errors:0 dropped:0 overruns:0 frame:0
TX packets:964 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:545249 (545.2 KB) TX bytes:179680 (179.6 KB)
127.0.0.1是環回地址。您無法從外部連接到它。您應該使用192.168。*。*地址。 – EJP