diff --git a/n2n/Dockerfile b/n2n/Dockerfile
index f7b8dba..29239fe 100644
--- a/n2n/Dockerfile
+++ b/n2n/Dockerfile
@@ -7,7 +7,7 @@ MAINTAINER EasyPi Software Foundation
 
 RUN set -xe \
     && apt update \
-    && apt install -y gnupg lsb-release net-tools wget \
+    && apt install -y gnupg iptables lsb-release net-tools wget \
     && wget http://apt.ntop.org/stretch/all/apt-ntop.deb \
     && dpkg -i apt-ntop.deb \
     && apt update \
diff --git a/n2n/README.md b/n2n/README.md
index 3e00c93..2c3ecd2 100644
--- a/n2n/README.md
+++ b/n2n/README.md
@@ -5,13 +5,34 @@ n2n
 users to exploit features typical of P2P applications at network instead of
 application level.
 
-## up and running
+```
+           .............VPN................
++------LAN-+-----+                 +- Edge.
+|          .     |                /       .
+| Client ->.Edge +-> Supernode <-+- Edge  .
+|          .     |                \       .
++----------+-----+                 +- Edge.
+           ................................
+```
+
+## Supernode (1.2.3.4)
 
 ```bash
-$ docker-compose up -d
+$ docker-compose up -d supernode
+```
 
-$ docker-compose exec edge bash
->>> ping 192.168.100.1
+## Edge (192.168.1.23)
+
+```bash
+$ docker-compose up -d edge
+$ sysctl -w net.ipv4.ip_forward=1
+$ iptables -t nat -A POSTROUTING -o n2n0 -j MASQUERADE
+```
+
+## Client (192.168.1.45)
+
+```bash
+$ ip route add 192.168.100.0/24 via 192.168.1.23
 ```
 
 [1]: https://www.ntop.org/products/n2n/
diff --git a/n2n/arm/Dockerfile b/n2n/arm/Dockerfile
index c13bdf3..9929d8c 100644
--- a/n2n/arm/Dockerfile
+++ b/n2n/arm/Dockerfile
@@ -7,7 +7,7 @@ MAINTAINER EasyPi Software Foundation
 
 RUN set -xe \
     && apt update \
-    && apt install -y gnupg lsb-release net-tools wget \
+    && apt install -y gnupg iptables lsb-release net-tools wget \
     && wget -qO- http://packages.ntop.org/apt/ntop.key | apt-key add - \
     && { \
            echo "deb http://apt.ntop.org/stretch_pi armhf/"; \
diff --git a/n2n/arm/docker-compose.yml b/n2n/arm/docker-compose.yml
index d934c7d..3f7b542 100644
--- a/n2n/arm/docker-compose.yml
+++ b/n2n/arm/docker-compose.yml
@@ -1,7 +1,7 @@
 edge:
   image: easypi/n2n-arm
   entrypoint: ["edge"]
-  command: ["-dn2n0", "-cmynetwork", "-kmypassword", "-mAA:BB:CC:DD:EE:FF", "-a192.168.100.1", "-p50001", "-lsupernode:7654", "-f"]
+  command: ["-dn2n0", "-cmynetwork", "-kmypassword", "-mAA:BB:CC:DD:EE:FF", "-a192.168.100.1", "-p50001", "-lsupernode:7654", "-r", "-f"]
   extra_hosts:
     - supernode:1.2.3.4
   devices:
diff --git a/n2n/docker-compose.yml b/n2n/docker-compose.yml
index 8d93ee5..6e9e38a 100644
--- a/n2n/docker-compose.yml
+++ b/n2n/docker-compose.yml
@@ -12,7 +12,7 @@ services:
   edge:
     image: vimagick/n2n
     entrypoint: ["edge"]
-    command: ["-dn2n0", "-cmynetwork", "-kmypassword", "-mAA:BB:CC:DD:EE:FF", "-a192.168.100.1", "-p50001", "-lsupernode:7654", "-f"]
+    command: ["-dn2n0", "-cmynetwork", "-kmypassword", "-mAA:BB:CC:DD:EE:FF", "-a192.168.100.1", "-p50001", "-lsupernode:7654", "-r", "-f"]
     devices:
       - /dev/net/tun
     cap_add: