--- src/openvpn/options.c	2019-05-16 14:22:26.171060000 +0300
+++ src/openvpn/options.c	2019-05-16 15:24:34.439341000 +0300
@@ -5820,6 +5820,10 @@
             {
                 options->sockflags |= SF_TCP_NODELAY;
             }
+	    else if (streq(p[j], "SO_REUSEPORT_LB"))
+            {
+                options->sockflags |= SF_USE_REUSEPORT_LB;
+            }
             else
             {
                 msg(msglevel, "unknown socket flag: %s", p[j]);
--- src/openvpn/socket.c	2019-05-16 14:22:26.150629000 +0300
+++ src/openvpn/socket.c	2019-05-16 15:41:38.422233000 +0300
@@ -1070,7 +1070,16 @@
         }
     }
 #endif /* if ENABLE_IP_PKTINFO */
-
+#ifdef SO_REUSEPORT_LB
+    if (flags & SF_USE_REUSEPORT_LB){
+        int on = 1;
+	if (setsockopt(sd, SOL_SOCKET, SO_REUSEPORT_LB,
+			(void *) &on, sizeof(on)) < 0)
+        {
+            msg(M_ERR, "UDP: Cannot setsockopt SO_REUSEPORT_LB on UDP socket");
+        }
+    }
+#endif /* if SO_REUSEPORT_LB */
     /* set socket file descriptor to not pass across execs, so that
      * scripts don't have access to it */
     set_cloexec(sd);
--- src/openvpn/socket.h	2019-05-16 14:22:26.185056000 +0300
+++ src/openvpn/socket.h	2019-05-16 15:22:00.221319000 +0300
@@ -210,6 +210,7 @@
 #define SF_PORT_SHARE (1<<2)
 #define SF_HOST_RANDOMIZE (1<<3)
 #define SF_GETADDRINFO_DGRAM (1<<4)
+#define SF_USE_REUSEPORT_LB (1<<5)
     unsigned int sockflags;
     int mark;