vyos-config.txt

# Version: vyos-1.2-rolling-201910282243-amd64

vyos
vyos

configure

set interfaces ethernet eth0 address dhcp
set interfaces ethernet eth0 address 192.168.0.1
set interfaces ethernet eth0 description OUTSIDE

set service ssh port 22

set nat source rule 100 outbound-interface eth0
set nat source rule 100 source address 192.168.0.0/24
set nat source rule 100 translation address masquerade

set service dhcp-server shared-network-name LAN subnet 192.168.0.0/24 default-router 192.168.0.1
set service dhcp-server shared-network-name LAN subnet 192.168.0.0/24 dns-server 192.168.0.1
set service dhcp-server shared-network-name LAN subnet 192.168.0.0/24 domain-name internal-network
set service dhcp-server shared-network-name LAN subnet 192.168.0.0/24 lease 86400
set service dhcp-server shared-network-name LAN subnet 192.168.0.0/24 range 0 start 192.168.0.100
set service dhcp-server shared-network-name LAN subnet 192.168.0.0/24 range 0 stop 192.168.0.200

set service dns forwarding allow-from 0.0.0.0/0
set service dns forwarding cache-size 1000
set service dns forwarding listen-address 192.168.0.1
set service dns forwarding name-server 8.8.8.8
set service dns forwarding name-server 8.8.4.4

set firewall name OUTSIDE-IN default-action drop
set firewall name OUTSIDE-IN rule 10 action accept
set firewall name OUTSIDE-IN rule 10 state established enable
set firewall name OUTSIDE-IN rule 10 state related enable

set firewall name OUTSIDE-LOCAL default-action drop
set firewall name OUTSIDE-LOCAL rule 10 action accept
set firewall name OUTSIDE-LOCAL rule 10 state established enable
set firewall name OUTSIDE-LOCAL rule 10 state related enable

set interfaces ethernet eth0 firewall in name OUTSIDE-IN
set interfaces ethernet eth0 firewall local name OUTSIDE-LOCAL

commit

save

exit

reboot

# Ref: https://wiki.vyos.net/wiki/User_Guide