Masquerade rule with netfilter-persitent

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I use netfilter-persistent to manage a firewall.



I would like to share a connection between two interfaces using masquerading (example, or another). When I run those operations by invoking iptables it works.



But if I try to update firewall rules stored in /etc/iptables/rules.v4 adding such a line: 



-t nat -A POSTROUTING -o wlan0 -j MASQUERADE


Lines starting with -t make netfilter-persistent fail to run and the firewall is not updated:



Nov 16 11:51:32 helena systemd[1]: netfilter-persistent.service: Main process exited, code=exited, status=1/FAILURE
Nov 16 11:51:32 helena systemd[1]: Failed to start netfilter persistent configuration.


So I am wondering if it is possible to store this kind of rules with netfilter-persistent or



  • Is it a known limitation?

  • Is there a good reason why it cannot work?

  • Is there a hack to make it work?





iptables forwarding netfilter connection-sharing iptables-persistent







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    up vote
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    down vote

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    I use netfilter-persistent to manage a firewall.



    I would like to share a connection between two interfaces using masquerading (example, or another). When I run those operations by invoking iptables it works.



    But if I try to update firewall rules stored in /etc/iptables/rules.v4 adding such a line: 



    -t nat -A POSTROUTING -o wlan0 -j MASQUERADE


    Lines starting with -t make netfilter-persistent fail to run and the firewall is not updated:



    Nov 16 11:51:32 helena systemd[1]: netfilter-persistent.service: Main process exited, code=exited, status=1/FAILURE
    Nov 16 11:51:32 helena systemd[1]: Failed to start netfilter persistent configuration.


    So I am wondering if it is possible to store this kind of rules with netfilter-persistent or



    • Is it a known limitation?

    • Is there a good reason why it cannot work?

    • Is there a hack to make it work?





    iptables forwarding netfilter connection-sharing iptables-persistent







    share|improve this question























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I use netfilter-persistent to manage a firewall.



      I would like to share a connection between two interfaces using masquerading (example, or another). When I run those operations by invoking iptables it works.



      But if I try to update firewall rules stored in /etc/iptables/rules.v4 adding such a line: 



      -t nat -A POSTROUTING -o wlan0 -j MASQUERADE


      Lines starting with -t make netfilter-persistent fail to run and the firewall is not updated:



      Nov 16 11:51:32 helena systemd[1]: netfilter-persistent.service: Main process exited, code=exited, status=1/FAILURE
      Nov 16 11:51:32 helena systemd[1]: Failed to start netfilter persistent configuration.


      So I am wondering if it is possible to store this kind of rules with netfilter-persistent or



      • Is it a known limitation?

      • Is there a good reason why it cannot work?

      • Is there a hack to make it work?





      iptables forwarding netfilter connection-sharing iptables-persistent







      share|improve this question













      I use netfilter-persistent to manage a firewall.



      I would like to share a connection between two interfaces using masquerading (example, or another). When I run those operations by invoking iptables it works.



      But if I try to update firewall rules stored in /etc/iptables/rules.v4 adding such a line: 



      -t nat -A POSTROUTING -o wlan0 -j MASQUERADE


      Lines starting with -t make netfilter-persistent fail to run and the firewall is not updated:



      Nov 16 11:51:32 helena systemd[1]: netfilter-persistent.service: Main process exited, code=exited, status=1/FAILURE
      Nov 16 11:51:32 helena systemd[1]: Failed to start netfilter persistent configuration.


      So I am wondering if it is possible to store this kind of rules with netfilter-persistent or



      • Is it a known limitation?

      • Is there a good reason why it cannot work?

      • Is there a hack to make it work?





      iptables forwarding netfilter connection-sharing iptables-persistent




      iptables forwarding netfilter connection-sharing iptables-persistent






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 2 days ago









      jlandercy

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