Astaro v.8.3 to Vyatta 6.4 ?

Astaro v.8.3 to Vyatta 6.4

I am using Astaro v.8.3 as an UTM appliance, which connects to my ISP and I am trying to connect to my internal clients.

Astaro External IP: DHCP
Astaro Internal IP: 10.0.10.1/24

I am trying to connect the Astaro device to a Vyatta router which is connected to my switch. The Vyatta router has 7 ports

Vyatta to Switch IP: 10.5.5.20 using eth2 and eth3 (bond1)

All device connected to switch can ping the router and view the router's web admin page.

What do I need to do to connect the Astaro appliance to the Vyatta router, so that my internal clients can have internet access?