-int ip_rt_min_delay = 2 * HZ;
-int ip_rt_max_delay = 10 * HZ;
-int ip_rt_max_size;
-int ip_rt_gc_timeout = RT_GC_TIMEOUT;
-int ip_rt_gc_interval = 60 * HZ;
-int ip_rt_gc_min_interval = HZ / 2;
-int ip_rt_redirect_number = 9;
-int ip_rt_redirect_load = HZ / 50;
-int ip_rt_redirect_silence = ((HZ / 50) << (9 + 1));
-int ip_rt_error_cost = HZ;
-int ip_rt_error_burst = 5 * HZ;
-int ip_rt_gc_elasticity = 8;
-int ip_rt_mtu_expires = 10 * 60 * HZ;
-int ip_rt_min_pmtu = 512 + 20 + 20;
-int ip_rt_min_advmss = 256;
-int ip_rt_secret_interval = 10 * 60 * HZ;
+static int ip_rt_min_delay = 2 * HZ;
+static int ip_rt_max_delay = 10 * HZ;
+static int ip_rt_max_size;
+static int ip_rt_gc_timeout = RT_GC_TIMEOUT;
+static int ip_rt_gc_interval = 60 * HZ;
+static int ip_rt_gc_min_interval = HZ / 2;
+static int ip_rt_redirect_number = 9;
+static int ip_rt_redirect_load = HZ / 50;
+static int ip_rt_redirect_silence = ((HZ / 50) << (9 + 1));
+static int ip_rt_error_cost = HZ;
+static int ip_rt_error_burst = 5 * HZ;
+static int ip_rt_gc_elasticity = 8;
+static int ip_rt_mtu_expires = 10 * 60 * HZ;
+static int ip_rt_min_pmtu = 512 + 20 + 20;
+static int ip_rt_min_advmss = 256;
+static int ip_rt_secret_interval = 10 * 60 * HZ;