diff --git a/tests/topotests/msdp_topo1/r1/pimd.conf b/tests/topotests/msdp_topo1/r1/pimd.conf
index 5bb268ebeff3..3c116a003bea 100644
--- a/tests/topotests/msdp_topo1/r1/pimd.conf
+++ b/tests/topotests/msdp_topo1/r1/pimd.conf
@@ -20,3 +20,7 @@ ip msdp peer 192.168.0.2 source 192.168.0.1
 ip msdp peer 192.168.1.2 source 192.168.1.1
 ip pim rp 10.254.254.1
 ip pim join-prune-interval 5
+!
+router pim
+ msdp peer 192.168.0.2 password 1234
+!
diff --git a/tests/topotests/msdp_topo1/r2/pimd.conf b/tests/topotests/msdp_topo1/r2/pimd.conf
index 733bd6f2f1a1..4ea2c8231438 100644
--- a/tests/topotests/msdp_topo1/r2/pimd.conf
+++ b/tests/topotests/msdp_topo1/r2/pimd.conf
@@ -16,3 +16,7 @@ ip msdp peer 192.168.0.1 source 192.168.0.2
 ip msdp peer 192.168.2.2 source 192.168.2.1
 ip pim rp 10.254.254.2
 ip pim join-prune-interval 5
+!
+router pim
+ msdp peer 192.168.0.1 password 1234
+!