diff --git a/libports/include/lwip/lwipopts.h b/libports/include/lwip/lwipopts.h
index 203bdefa2..33b6c922d 100644
--- a/libports/include/lwip/lwipopts.h
+++ b/libports/include/lwip/lwipopts.h
@@ -62,7 +62,7 @@
 #define TCP_SND_BUF                 (32 * TCP_MSS)
 #define TCP_SND_QUEUELEN            ((32 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS))
 
-#define RECV_BUFSIZE_DEFAULT        2147483647 /* this is actually INT_MAX, default value */
+#define RECV_BUFSIZE_DEFAULT        128 * 1024
 
 #define PBUF_POOL_SIZE             96
 
diff --git a/ports/run/netperf.run b/ports/run/netperf.run
index f5678dce4..48ea55163 100644
--- a/ports/run/netperf.run
+++ b/ports/run/netperf.run
@@ -178,7 +178,7 @@ set packet_size 1024
 set netperf_tests "TCP_STREAM TCP_MAERTS"
 
 foreach netperf_test $netperf_tests {
-	spawn bin/netperf_host -H $ip_addr -P 1 -v 2 -t $netperf_test -c -C -- -m $packet_size -S 0,65520 -P 49153,49153
+	spawn bin/netperf_host -H $ip_addr -P 1 -v 2 -t $netperf_test -c -C -- -m $packet_size -P 49153,49153
 	set netperf_id $spawn_id
 
 	run_genode_until "Segment" 60 $netperf_id