Configure Vyatta Router With SSH/DHCP client

As you can see from the diagram , Vyatta router has 3 Ethernet ports : 1 external to provide the network with internet and 2 internal for the clients. 

External
1) eth0 : (DHCP's IP Address)

Internal
2) eth1 : IP address : 192.168.1.1/24
3) eth2 : IP address : 192.168.2.1/24

Configuring Vyatta

1) Now i will configure both external and internal ports in which the external network  will get  it's IPaddress from the DHCP server and the internal networks will be configured with  the address 192.168.1.1/24 and 192.168.2.1/24 (This addresses are the default gateway)


configure
set  interfaces ethernet  eth0 address dhcp
source nat rule 10
source nat rule 10 outbound-interface eth0
source nat rule 10 translation address masqurade
set  interfaces ethernet eth0 description Outside (optional)
set  interfaces ethernet  eth1 address  192.168.1.1/24 
set  interfaces ethernet  eth2 address  192.168.2.1/24
commit
save
exit 

2) Now i will check if the Ethernet ports configured correct.

show interfaces

**In case that you want to execute the operational mode show command(s) inside the configuration mode, just add run in front of it. 

run show interfaces

3) Assigned the appropriate IP addresses on each client and try if both the networks can ping each other and get access to the internet.

4) If you want to configuring or checking your Vyatta router remotely you can enable SSH access.

Before you allowing the SSH access, you have to enable the SSH service on the router. Also it is recommended to change the SSH's default port from 22 to 2222 for security reason.

set service ssh
set service ssh port 2222
commit
save 
show service ssh

5) To get access to Vyatta router through the SSH , use your root credentials.