int runCmd(int argc, const char **argv);
int setForwardRules(bool set, const char *intIface, const char *extIface);
int setTetherCountingRules(bool add, const char *intIface, const char *extIface);
int runCmd(int argc, const char **argv);
int setForwardRules(bool set, const char *intIface, const char *extIface);
int setTetherCountingRules(bool add, const char *intIface, const char *extIface);