From 71670ca9c9cf7ee4a34ba2082bc039ea0e83244c Mon Sep 17 00:00:00 2001
From: Jacek Sieka <jacek@status.im>
Date: Tue, 19 Mar 2019 12:57:57 -0600
Subject: [PATCH] make nat setting optional when running sim

---
 tests/simulation/run_node.sh | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tests/simulation/run_node.sh b/tests/simulation/run_node.sh
index 301390076..559665f61 100755
--- a/tests/simulation/run_node.sh
+++ b/tests/simulation/run_node.sh
@@ -12,7 +12,11 @@ DATA_DIR=$SIMULATION_DIR/node-${1}
 
 V_PREFIX="$VALIDATORS_DIR/v$(printf '%06d' ${1})"
 PORT=$(printf '5%04d' ${1})
-MYIP=$(curl -s ifconfig.me)
+
+NAT_FLAG=""
+if [ "${NAT:-}" == "1" ]; then
+  NAT_FLAG="--nat:extip:$(curl -s ifconfig.me)"
+fi
 
 $BEACON_NODE_BIN \
   --network:$NETWORK_METADATA_FILE \
@@ -29,6 +33,6 @@ $BEACON_NODE_BIN \
   --validator:${V_PREFIX}9.privkey \
   --tcpPort:$PORT \
   --udpPort:$PORT \
-  --nat:extip:$MYIP \
+  $NAT_FLAG \
   --stateSnapshot:$SNAPSHOT_FILE