diff --git a/recipes-bsp/init-ifupdown/init-ifupdown-master/sysmocom-idu/interfaces b/recipes-bsp/init-ifupdown/init-ifupdown-master/sysmocom-idu/interfaces
index f29c295..2bf920b 100644
--- a/recipes-bsp/init-ifupdown/init-ifupdown-master/sysmocom-idu/interfaces
+++ b/recipes-bsp/init-ifupdown/init-ifupdown-master/sysmocom-idu/interfaces
@@ -24,10 +24,19 @@ auto eth0.2001
 iface eth0.2001 inet manual
 
 # VLAN 2002: Reserved for a future Inmarsat satellite modem
-# attached to port 7 of the IES-3080
+# attached to port 6 of the IES-3080
 auto eth0.2002
-#iface eth0.2002 inet dhcp
-iface eth0.2002 inet manual
+iface eth0.2002 inet static
+        address 10.156.136.99
+        netmask 255.255.255.224
+        network 10.156.136.96
+        #gateway 10.156.136.97 # no route should be installed, linkmon will do that.
+        # Switch off rp_filter
+        post-up /sbin/sysctl net.ipv4.conf.eth0/2002.rp_filter=2
+        # Set a route with high metric nr so a ping -I on this iface will work:
+        post-up ip r add 5.9.81.48/32 via 10.156.136.97 metric 101
+        # Once sob-idu-linkmon sees pings working, it will install a route
+        # with lower metric.
 
 # management VLAN of IES-3080 switch (172.16.2.3)
 auto eth0.6
diff --git a/recipes-bsp/init-ifupdown/init-ifupdown/sysmocom-idu/interfaces b/recipes-bsp/init-ifupdown/init-ifupdown/sysmocom-idu/interfaces
index f29c295..2bf920b 100644
--- a/recipes-bsp/init-ifupdown/init-ifupdown/sysmocom-idu/interfaces
+++ b/recipes-bsp/init-ifupdown/init-ifupdown/sysmocom-idu/interfaces
@@ -24,10 +24,19 @@ auto eth0.2001
 iface eth0.2001 inet manual
 
 # VLAN 2002: Reserved for a future Inmarsat satellite modem
-# attached to port 7 of the IES-3080
+# attached to port 6 of the IES-3080
 auto eth0.2002
-#iface eth0.2002 inet dhcp
-iface eth0.2002 inet manual
+iface eth0.2002 inet static
+        address 10.156.136.99
+        netmask 255.255.255.224
+        network 10.156.136.96
+        #gateway 10.156.136.97 # no route should be installed, linkmon will do that.
+        # Switch off rp_filter
+        post-up /sbin/sysctl net.ipv4.conf.eth0/2002.rp_filter=2
+        # Set a route with high metric nr so a ping -I on this iface will work:
+        post-up ip r add 5.9.81.48/32 via 10.156.136.97 metric 101
+        # Once sob-idu-linkmon sees pings working, it will install a route
+        # with lower metric.
 
 # management VLAN of IES-3080 switch (172.16.2.3)
 auto eth0.6