Enable CiaB to send packets outside by using router and SNAT

Change-Id: I6afe069d0f1637c4c2a969887c624d7480c45135
diff --git a/comac-in-a-box/resources/router.yaml b/comac-in-a-box/resources/router.yaml
index 2307a48..5f27992 100644
--- a/comac-in-a-box/resources/router.yaml
+++ b/comac-in-a-box/resources/router.yaml
@@ -41,9 +41,12 @@
     command: ["/bin/bash", "-c"]
     args:
       - >
+        sysctl -w net.ipv4.ip_forward=1;
+        iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE;
         trap : TERM INT; sleep infinity & wait
     image: opencord/quagga
     securityContext:
+      privileged: true
       capabilities:
         add:
           - NET_ADMIN