Multiple Network Cards Inet Address and Socket

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I am currently working on a program that needs to have multiple Wireless Network cards that can communicate to different devices at the same time on the same port. Currently, when I try and connect to the socket, it uses the default card, and no matter what I do, the second connection fails since it's trying to use the same socket on the same network card. Basically, I think I need a way to completely separate the two network cards. I am unsure how to go about doing this though, I know the solution might involve IP tables. Thanks



Current setup



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 scope host lo
 valid_lft forever preferred_lft forever
 inet6 ::1/128 scope host 
 valid_lft forever preferred_lft forever
2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
 link/ether 10:7b:44:7b:09:84 brd ff:ff:ff:ff:ff:ff
 inet 10.1.10.126/24 brd 10.1.10.255 scope global dynamic noprefixroute enp3s0
 valid_lft 603140sec preferred_lft 603140sec
 inet6 2603:3004:776:2000::a426/128 scope global dynamic noprefixroute 
 valid_lft 603143sec preferred_lft 603143sec
 inet6 2603:3004:776:2000:4c2f:a5a0:4a46:157f/64 scope global temporary dynamic 
 valid_lft 345598sec preferred_lft 84734sec
 inet6 2603:3004:776:2000:39ff:407f:32ae:ea8b/64 scope global dynamic mngtmpaddr noprefixroute 
 valid_lft 345598sec preferred_lft 345598sec
 inet6 fe80::45a1:765:4ea:18cb/64 scope link noprefixroute 
 valid_lft forever preferred_lft forever
3: wlp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
 link/ether d4:6e:0e:10:32:95 brd ff:ff:ff:ff:ff:ff
 inet 200.100.200.20/24 brd 200.100.200.255 scope global dynamic noprefixroute wlp1s0
 valid_lft 298sec preferred_lft 298sec
 inet6 fe80::7fcd:ba35:3541:639e/64 scope link noprefixroute 
 valid_lft forever preferred_lft forever
4: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
 link/ether 7c:8b:ca:0a:11:de brd ff:ff:ff:ff:ff:ff
 inet 200.100.200.20/24 brd 200.100.200.255 scope global dynamic noprefixroute wlp2s0
 valid_lft 298sec preferred_lft 298sec
 inet6 fe80::c503:ddbe:74f4:3f0f/64 scope link noprefixroute 
 valid_lft forever preferred_lft forever





networking wifi socket






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    I am currently working on a program that needs to have multiple Wireless Network cards that can communicate to different devices at the same time on the same port. Currently, when I try and connect to the socket, it uses the default card, and no matter what I do, the second connection fails since it's trying to use the same socket on the same network card. Basically, I think I need a way to completely separate the two network cards. I am unsure how to go about doing this though, I know the solution might involve IP tables. Thanks



    Current setup



    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 scope host lo
     valid_lft forever preferred_lft forever
     inet6 ::1/128 scope host 
     valid_lft forever preferred_lft forever
    2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
     link/ether 10:7b:44:7b:09:84 brd ff:ff:ff:ff:ff:ff
     inet 10.1.10.126/24 brd 10.1.10.255 scope global dynamic noprefixroute enp3s0
     valid_lft 603140sec preferred_lft 603140sec
     inet6 2603:3004:776:2000::a426/128 scope global dynamic noprefixroute 
     valid_lft 603143sec preferred_lft 603143sec
     inet6 2603:3004:776:2000:4c2f:a5a0:4a46:157f/64 scope global temporary dynamic 
     valid_lft 345598sec preferred_lft 84734sec
     inet6 2603:3004:776:2000:39ff:407f:32ae:ea8b/64 scope global dynamic mngtmpaddr noprefixroute 
     valid_lft 345598sec preferred_lft 345598sec
     inet6 fe80::45a1:765:4ea:18cb/64 scope link noprefixroute 
     valid_lft forever preferred_lft forever
    3: wlp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
     link/ether d4:6e:0e:10:32:95 brd ff:ff:ff:ff:ff:ff
     inet 200.100.200.20/24 brd 200.100.200.255 scope global dynamic noprefixroute wlp1s0
     valid_lft 298sec preferred_lft 298sec
     inet6 fe80::7fcd:ba35:3541:639e/64 scope link noprefixroute 
     valid_lft forever preferred_lft forever
    4: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
     link/ether 7c:8b:ca:0a:11:de brd ff:ff:ff:ff:ff:ff
     inet 200.100.200.20/24 brd 200.100.200.255 scope global dynamic noprefixroute wlp2s0
     valid_lft 298sec preferred_lft 298sec
     inet6 fe80::c503:ddbe:74f4:3f0f/64 scope link noprefixroute 
     valid_lft forever preferred_lft forever





    networking wifi socket






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    Nark is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I am currently working on a program that needs to have multiple Wireless Network cards that can communicate to different devices at the same time on the same port. Currently, when I try and connect to the socket, it uses the default card, and no matter what I do, the second connection fails since it's trying to use the same socket on the same network card. Basically, I think I need a way to completely separate the two network cards. I am unsure how to go about doing this though, I know the solution might involve IP tables. Thanks



      Current setup



      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 scope host lo
       valid_lft forever preferred_lft forever
       inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
      2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
       link/ether 10:7b:44:7b:09:84 brd ff:ff:ff:ff:ff:ff
       inet 10.1.10.126/24 brd 10.1.10.255 scope global dynamic noprefixroute enp3s0
       valid_lft 603140sec preferred_lft 603140sec
       inet6 2603:3004:776:2000::a426/128 scope global dynamic noprefixroute 
       valid_lft 603143sec preferred_lft 603143sec
       inet6 2603:3004:776:2000:4c2f:a5a0:4a46:157f/64 scope global temporary dynamic 
       valid_lft 345598sec preferred_lft 84734sec
       inet6 2603:3004:776:2000:39ff:407f:32ae:ea8b/64 scope global dynamic mngtmpaddr noprefixroute 
       valid_lft 345598sec preferred_lft 345598sec
       inet6 fe80::45a1:765:4ea:18cb/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
      3: wlp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
       link/ether d4:6e:0e:10:32:95 brd ff:ff:ff:ff:ff:ff
       inet 200.100.200.20/24 brd 200.100.200.255 scope global dynamic noprefixroute wlp1s0
       valid_lft 298sec preferred_lft 298sec
       inet6 fe80::7fcd:ba35:3541:639e/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
      4: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
       link/ether 7c:8b:ca:0a:11:de brd ff:ff:ff:ff:ff:ff
       inet 200.100.200.20/24 brd 200.100.200.255 scope global dynamic noprefixroute wlp2s0
       valid_lft 298sec preferred_lft 298sec
       inet6 fe80::c503:ddbe:74f4:3f0f/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever





      networking wifi socket






      share







      New contributor




      Nark is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      I am currently working on a program that needs to have multiple Wireless Network cards that can communicate to different devices at the same time on the same port. Currently, when I try and connect to the socket, it uses the default card, and no matter what I do, the second connection fails since it's trying to use the same socket on the same network card. Basically, I think I need a way to completely separate the two network cards. I am unsure how to go about doing this though, I know the solution might involve IP tables. Thanks



      Current setup



      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 scope host lo
       valid_lft forever preferred_lft forever
       inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
      2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
       link/ether 10:7b:44:7b:09:84 brd ff:ff:ff:ff:ff:ff
       inet 10.1.10.126/24 brd 10.1.10.255 scope global dynamic noprefixroute enp3s0
       valid_lft 603140sec preferred_lft 603140sec
       inet6 2603:3004:776:2000::a426/128 scope global dynamic noprefixroute 
       valid_lft 603143sec preferred_lft 603143sec
       inet6 2603:3004:776:2000:4c2f:a5a0:4a46:157f/64 scope global temporary dynamic 
       valid_lft 345598sec preferred_lft 84734sec
       inet6 2603:3004:776:2000:39ff:407f:32ae:ea8b/64 scope global dynamic mngtmpaddr noprefixroute 
       valid_lft 345598sec preferred_lft 345598sec
       inet6 fe80::45a1:765:4ea:18cb/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
      3: wlp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
       link/ether d4:6e:0e:10:32:95 brd ff:ff:ff:ff:ff:ff
       inet 200.100.200.20/24 brd 200.100.200.255 scope global dynamic noprefixroute wlp1s0
       valid_lft 298sec preferred_lft 298sec
       inet6 fe80::7fcd:ba35:3541:639e/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
      4: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
       link/ether 7c:8b:ca:0a:11:de brd ff:ff:ff:ff:ff:ff
       inet 200.100.200.20/24 brd 200.100.200.255 scope global dynamic noprefixroute wlp2s0
       valid_lft 298sec preferred_lft 298sec
       inet6 fe80::c503:ddbe:74f4:3f0f/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever





      networking wifi socket




      networking wifi socket





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