diff --git a/recipes-bsp/init-ifupdown/init-ifupdown/sysmocom-idu/interfaces b/recipes-bsp/init-ifupdown/init-ifupdown/sysmocom-idu/interfaces
index 71c188595d..35a78051bd 100644
--- a/recipes-bsp/init-ifupdown/init-ifupdown/sysmocom-idu/interfaces
+++ b/recipes-bsp/init-ifupdown/init-ifupdown/sysmocom-idu/interfaces
@@ -16,6 +16,7 @@ iface eth0.2000 inet static
 	netmask 255.255.255.0
 	network 192.168.0.0
 	post-up ip r add 10.6.1.0/24 via 192.168.0.1
+	post-up ip r add 5.9.81.48/32 via 192.168.0.1 metric 100
 
 # VLAN 2001: Reserved for a future C-Band satellite modem
 # attached to port 8 of the IES-3080