diff --git a/build-deb/debian/changelog b/build-deb/debian/changelog
index ca256a1..29fbc9f 100644
--- a/build-deb/debian/changelog
+++ b/build-deb/debian/changelog
@@ -1,3 +1,9 @@
+sanji-bundle-route (0.9.6-1) unstable; urgency=low
+
+  * Add timeout to `grep` for preventing input without EOF.
+
+ -- Aeluin Chen <aeluin.chen@moxa.com>  Thu, 05 Nov 2015 11:22:22 +0800
+
 sanji-bundle-route (0.9.5-1) unstable; urgency=low
 
   * Bugfix: default gateway cannot be updated at some scenario.
diff --git a/bundle.json b/bundle.json
index 11b3ce6..af0dcdb 100644
--- a/bundle.json
+++ b/bundle.json
@@ -1,6 +1,6 @@
 {
   "name": "route",
-  "version": "0.9.5",
+  "version": "0.9.6",
   "author": "Aeluin Chen",
   "email": "aeluin.chen@moxa.com",
   "description": "Handle the routing table",
diff --git a/ip/addr.py b/ip/addr.py
index cde5f6a..9684e9c 100755
--- a/ip/addr.py
+++ b/ip/addr.py
@@ -111,7 +111,9 @@ def ifupdown(iface, up):
     if not up:
         try:
             output = sh.awk(
-                sh.grep(sh.grep(sh.ps("ax"), iface), "dhclient"),
+                sh.grep(
+                    sh.grep(sh.ps("ax"), iface, _timeout=5),
+                    "dhclient", _timeout=5),
                 "{print $1}")
             dhclients = output().split()
             for dhclient in dhclients:
@@ -150,7 +152,9 @@ def ifconfig(iface, dhcpc, ip="", netmask="24", gateway="", script=None):
     # Disable the dhcp client and flush interface
     try:
         dhclients = sh.awk(
-            sh.grep(sh.grep(sh.ps("ax"), iface), "dhclient"),
+            sh.grep(
+                sh.grep(sh.ps("ax"), iface, _timeout=5),
+                "dhclient", _timeout=5),
             "{print $1}")
         dhclients = dhclients.split()
         if 1 == len(dhclients):