Update README-VTN.md
diff --git a/xos/configurations/cord/README-VTN.md b/xos/configurations/cord/README-VTN.md
index 5000b23..3d61940 100644
--- a/xos/configurations/cord/README-VTN.md
+++ b/xos/configurations/cord/README-VTN.md
@@ -116,6 +116,7 @@
Getting external connectivity working on cloudlab
Inside of vSG:
+
ip link add link eth0 eth0.500 type vlan id 500
ifconfig eth0.500 up
route del default gw 172.27.0.1
@@ -126,11 +127,13 @@
arp -s 10.123.0.1 00:8c:fa:5b:09:d8
On head node:
+
ifconfig eth2 10.123.0.1
iptables --table nat --append POSTROUTING --out-interface br-ex -j MASQUERADE
arp -s 10.123.0.3 fa:16:3e:ea:11:0a
Substitute for your installation:
+
10.123.0.3 = wan_ip of vSG
10.123.0.1 = wan gateway
fa:16:3e:ea:11:0a = wan_mac of vSG