Conditionally redirect to sock5 server in iptables, only if the server works












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I have a bit of a silly situation. My network has direct slow internet access, which can be used at any time. However, I have a subscription for fast but limited vpn, which works like sock5 server (not sure whether it is transparent or not).



My question is: is it possible to configure iptables in such way, that they redirect all tcp traffic to sock5 server only if the server is working and use the slow connection in otherwise?



My question is: is it possible to configure iptables in such way, that they redirect all tcp traffic to sock5 server only if the server is working and use the slow connection in otherwise?



So some specific:




  • Linux Ubuntu router

  • eth0 - external interphase, ip-dynamic got through dhcp protocol

  • vpn - ip is the same as the gateway of external network with port 1986

  • eth1 - inner network which may be configured as I want.










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    0















    I have a bit of a silly situation. My network has direct slow internet access, which can be used at any time. However, I have a subscription for fast but limited vpn, which works like sock5 server (not sure whether it is transparent or not).



    My question is: is it possible to configure iptables in such way, that they redirect all tcp traffic to sock5 server only if the server is working and use the slow connection in otherwise?



    My question is: is it possible to configure iptables in such way, that they redirect all tcp traffic to sock5 server only if the server is working and use the slow connection in otherwise?



    So some specific:




    • Linux Ubuntu router

    • eth0 - external interphase, ip-dynamic got through dhcp protocol

    • vpn - ip is the same as the gateway of external network with port 1986

    • eth1 - inner network which may be configured as I want.










    share|improve this question



























      0












      0








      0








      I have a bit of a silly situation. My network has direct slow internet access, which can be used at any time. However, I have a subscription for fast but limited vpn, which works like sock5 server (not sure whether it is transparent or not).



      My question is: is it possible to configure iptables in such way, that they redirect all tcp traffic to sock5 server only if the server is working and use the slow connection in otherwise?



      My question is: is it possible to configure iptables in such way, that they redirect all tcp traffic to sock5 server only if the server is working and use the slow connection in otherwise?



      So some specific:




      • Linux Ubuntu router

      • eth0 - external interphase, ip-dynamic got through dhcp protocol

      • vpn - ip is the same as the gateway of external network with port 1986

      • eth1 - inner network which may be configured as I want.










      share|improve this question
















      I have a bit of a silly situation. My network has direct slow internet access, which can be used at any time. However, I have a subscription for fast but limited vpn, which works like sock5 server (not sure whether it is transparent or not).



      My question is: is it possible to configure iptables in such way, that they redirect all tcp traffic to sock5 server only if the server is working and use the slow connection in otherwise?



      My question is: is it possible to configure iptables in such way, that they redirect all tcp traffic to sock5 server only if the server is working and use the slow connection in otherwise?



      So some specific:




      • Linux Ubuntu router

      • eth0 - external interphase, ip-dynamic got through dhcp protocol

      • vpn - ip is the same as the gateway of external network with port 1986

      • eth1 - inner network which may be configured as I want.







      linux networking iptables conditional-formatting socks5






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Feb 14 at 15:44







      rth

















      asked Feb 13 at 12:35









      rthrth

      1013




      1013






















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