vpn02
# Supernode mit direkter VPN Ausleitung

Ausleitung über das FFRL Backbone.
Supernode Config:
- GRE-Tunnel zum FFRL Backbone
- VPN per Wireguard
- NAT auf VPN Routern

## Adressbereiche:

Supernode: 10.255.1.1/32

VPN01: 10.255.1.2/32, Client: 10.1.0.0/16
VPN02: 10.255.1.3/32, Client: 10.2.0.0/16
VPN03: 10.255.1.4/32, Client: 10.3.0.0/16
etc.


## ER-X Stock Firmware Config:
> Vor der Installation:
> - eth0 als DHCP Client
> - eth1-4 auf den Switch
> - Switch mit DHCP Server einrichten. Adressbereich aus Tabelle beachten!

## Install Wireguard
cd /tmp
curl -OL https://github.com/WireGuard/wireguard-vyatta-ubnt/releases/download/1.0.20211208-1/e50-v2-v1.0.20211208-v1.0.20210914.deb
sudo dpkg -i e50-v2-v1.0.20211208-v1.0.20210914.deb

## Generate Keys
    cd /config/auth
    wg genkey | tee /config/auth/wg.key | wg pubkey >  wg.public
    cat wg.public
    cat wg.key

## Config ER-X
    configure
## Wireguard
    set interfaces wireguard wg0 address 10.255.1.3/24
    set interfaces wireguard wg0 address fd80:3ea2:e399:203a::3/64
    set interfaces wireguard wg0 listen-port 51821
    set interfaces wireguard wg0 route-allowed-ips false
    set interfaces wireguard wg0 persistent-keepalive 25
    set interfaces wireguard wg0 peer 5B/YTaDPVWVApUyHshJp899iXXlBy8rBqJUpYvKo+1s= endpoint 7.fftdf.de:42001
    set interfaces wireguard wg0 peer 5B/YTaDPVWVApUyHshJp899iXXlBy8rBqJUpYvKo+1s= allowed-ips 0.0.0.0/0
    set interfaces wireguard wg0 peer 5B/YTaDPVWVApUyHshJp899iXXlBy8rBqJUpYvKo+1s= allowed-ips ::0/0
    set interfaces wireguard wg0 private-key /config/auth/wg.key
## Firewall for Wireguard
    set firewall name WAN_LOCAL rule 20 action accept
    set firewall name WAN_LOCAL rule 20 protocol udp
    set firewall name WAN_LOCAL rule 20 description 'WireGuard'
    set firewall name WAN_LOCAL rule 20 destination port 51821
    set firewall group network-group LAN-VPN description 'Networks on LAN destined to go out VPN by default'
    set firewall group network-group LAN-VPN network 10.2.0.0/16
    set firewall group network-group RFC1918 network 10.0.0.0/8
    set firewall group network-group RFC1918 network 172.16.0.0/12
    set firewall group network-group RFC1918 network 192.168.0.0/16
    set firewall group network-group RFC1918 network 169.254.0.0/16
    set protocols static table 2 route 0.0.0.0/0 next-hop 10.255.1.1
    set firewall modify VPN_TDF7 rule 100 action modify
    set firewall modify VPN_TDF7 rule 100 description 'Route traffic from group LAN-VPN through VPN-TDF7 table'
    set firewall modify VPN_TDF7 rule 100 modify table 2
    set firewall modify VPN_TDF7 rule 100 source group network-group LAN-VPN
    set interfaces switch switch0 firewall in modify VPN_TDF7
## NAT einrichten
    set service nat rule 5010 description 'masquerade for VPN'
    set service nat rule 5010 outbound-interface wg0
    set service nat rule 5010 type masquerade
    set service nat rule 5010 protocol all
## Speichern
    commit ; save