Tutorial 5 - RJ45 Node

Overview

This tutorial will cover connecting CORE VM to a Windows host machine using a RJ45 node.

Files

Below is the list of files used for this tutorial.

scenario.xml - the scenario with RJ45 unassigned
scenario.py- grpc script to create the RJ45 in simple CORE scenario
client_for_windows.py - chat app client modified for windows

Running with the Saved XML File

This section covers using the saved scenario.xml file to get and up and running.

Configure the Windows host VM to have a bridged network adapter
Make sure the core-daemon is running in a terminal
```
sudo core-daemon
```
In another terminal run the GUI
```
core-gui
```
Open the scenario.xml with the unassigned RJ45 node
Configure the RJ45 node name to use the bridged interface
After configuring the RJ45, run the scenario:
Double click node n1 to open a terminal and add a route to the Windows host
```
ip route add 192.168.0.0/24 via 10.0.0.20
```
On the Windows host using Windows command prompt with administrator privilege, add a route that uses the interface connected to the associated interface assigned to the RJ45 node
```
# if enp0s3 is ssigned 192.168.0.6/24
route add 10.0.0.0 mask 255.255.255.0 192.168.0.6
```

Now you should be able to ping from the Windows host to n1

C:\WINDOWS\system32>ping 10.0.0.20

Pinging 10.0.0.20 with 32 bytes of data:
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64

Ping statistics for 10.0.0.20:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss)
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

After pinging successfully, run the following in the n1 terminal to start the chatapp server
```
export PATH=$PATH:/usr/local/bin
chatapp-server
```

On the Windows host, run the client_for_windows.py

python3 client_for_windows.py -a 10.0.0.20
connected to server(10.0.0.20:9001) as client(192.168.0.6:49960)
>> .Hello WORLD
.Hello WORLD Again
.

Observe output on n1

chat server listening on: :9001
[server] 192.168.0.6:49960 joining
[192.168.0.6:49960] Hello WORLD
[192.168.0.6:49960] Hello WORLD Again

When finished, you can stop the CORE scenario and cleanup
On the Windows host remove the added route
```
route delete 10.0.0.0
```

Running with the gRPC Script

This section covers leveraging the gRPC script to get up and running.

Configure the Windows host VM to have a bridged network adapter
Make sure the core-daemon is running in a terminal
```
sudo core-daemon
```
In another terminal run the GUI
```
core-gui
```

Run the gRPC script in the VM

# use the desired interface name, in this case enp0s3
/opt/core/venv/bin/python scenario.py enp0s3

In the core-gui connect to the running session that was created
Double click node n1 to open a terminal and add a route to the Windows host
```
ip route add 192.168.0.0/24 via 10.0.0.20
```
On the Windows host using Windows command prompt with administrator privilege, add a route that uses the interface connected to the associated interface assigned to the RJ45 node
```
# if enp0s3 is ssigned 192.168.0.6/24
route add 10.0.0.0 mask 255.255.255.0 192.168.0.6
```

Now you should be able to ping from the Windows host to n1

C:\WINDOWS\system32>ping 10.0.0.20

Pinging 10.0.0.20 with 32 bytes of data:
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64

Ping statistics for 10.0.0.20:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss)
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

After pinging successfully, run the following in the n1 terminal to start the chatapp server
```
export PATH=$PATH:/usr/local/bin
chatapp-server
```

On the Windows host, run the client_for_windows.py

python3 client_for_windows.py -a 10.0.0.20
connected to server(10.0.0.20:9001) as client(192.168.0.6:49960)
>> .Hello WORLD
.Hello WORLD Again
.

Observe output on n1

chat server listening on: :9001
[server] 192.168.0.6:49960 joining
[192.168.0.6:49960] Hello WORLD
[192.168.0.6:49960] Hello WORLD Again

When finished, you can stop the CORE scenario and cleanup
On the Windows host remove the added route
```
route delete 10.0.0.0
```