diff --git a/src/test/setup/quagga-config/start.sh b/src/test/setup/quagga-config/start.sh
index 5b140ca..77e342b 100755
--- a/src/test/setup/quagga-config/start.sh
+++ b/src/test/setup/quagga-config/start.sh
@@ -2,4 +2,5 @@
 ulimit -n 65536
 ip a add 10.10.0.3/16 dev eth1
 #bgpd -u root -f /root/config/bgpd.conf &
-/usr/local/sbin/zebra -u root -f /root/config/testrib.conf
+conf_file=${1:-/root/config/testrib.conf}
+/usr/local/sbin/zebra -u root -f $conf_file