int cif6addr(int, eui64_t, eui64_t);
/* Remove an IPv6 address from i/f */
#endif
-int sifdefaultroute(int, u_int32_t, u_int32_t);
+int sifdefaultroute(int, u_int32_t, u_int32_t, bool replace_default_rt);
/* Create default route through i/f */
int cifdefaultroute(int, u_int32_t, u_int32_t);
/* Delete default route through i/f */