ModeemiWiki

Hi! welcome to our workshop! Today we'd like to show a few things that you can do with computer networks!

The following points will be discussed:

1. IP addresses (IPv4)
   1. Gateway
   2. Broadcast
   3. Network
2. Local network
   1. Set it up
   2. Take a look at packets (wireshark)
3. Beyond local network - connecting many networks!

1. VPN project - two sites

1. first with 10.1.1.0/24 network, VPN server
2. second with 10.1.2.0/24 network, VPN client
3. first has 10.1.3.1/30, second has 10.1.3.2/30

Server:

[Interface]
PrivateKey = yourPrivateKey
Address = 10.1.3.1/30
ListenPort = 51820
PostUp = ip route add 10.1.2.0/24 via 10.1.3.1

[Peer]
PublicKey = OtherpartyPublicKey
AllowedIPs = 10.1.1.0/24, 10.1.3.2/32

Client:

[Interface]
Address = 10.1.3.2/30
PrivateKey = yourPrivateKey
PostUp = ip route add 10.1.1.0/24 via 10.1.3.2

[Peer]
PublicKey = OtherPartyPublickey
Endpoint = publicIP:51820
AllowedIPs = 10.1.1.0/24, 10.1.3.1/32
PersistentKeepalive = 21

Generate private and public key for VPN server

wg genkey | tee privatekey | wg pubkey > publickey; cat publickey; cat privatekey