diff --git a/ci/prepare_gtest_network.sh b/ci/prepare_gtest_network.sh
index 86b9e7b..d6f2d12 100644
--- a/ci/prepare_gtest_network.sh
+++ b/ci/prepare_gtest_network.sh
@@ -1,7 +1,8 @@
 #!/usr/bin/env bash
 
-# install iproute2
+# install iproute net-tools
 yum install -y iproute
+yum install -y net-tools
 
 # create tun device
 ip tuntap add dev tun0 mode tun