From cae6e8639e1b76d54004d6dc2f1cb9291e3adebc Mon Sep 17 00:00:00 2001
From: whitequark <whitequark@whitequark.org>
Date: Tue, 21 Jun 2016 09:45:53 +0000
Subject: [PATCH] Revert "runtime: disable lwip TCP keepalive."

This reverts commit 0db6ef0e1ca32068ffd17e1fada770c7a30d2e86.
---
 artiq/runtime/liblwip/lwipopts.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/artiq/runtime/liblwip/lwipopts.h b/artiq/runtime/liblwip/lwipopts.h
index d53f76785..1dc945e96 100644
--- a/artiq/runtime/liblwip/lwipopts.h
+++ b/artiq/runtime/liblwip/lwipopts.h
@@ -105,7 +105,7 @@ a lot of data that needs to be copied, this should be set high. */
 
 /* ---------- TCP options ---------- */
 #define LWIP_TCP                1
-#define LWIP_TCP_KEEPALIVE      0
+#define LWIP_TCP_KEEPALIVE      1
 #define TCP_KEEPIDLE_DEFAULT    1250
 #define TCP_KEEPINTVL_DEFAULT   1000
 #define TCP_KEEPCNT_DEFAULT     3