Hi,
So i make a lab with vyatta 
.
This is my configuration.
Network Internet :
Routeur ISP : 192.168.1.254
Desktop A : 192.168.1.150/24 ->> GW 192.168.1.250
Vyatta :
eth0 (Network Internet) : 192.168.1.250/24
eth1 (Private Network) : 10.10.1.250/24
Default Gateway : 192.168.1.254
Private Network :
Desktop B : 10.10.1.11/24 -->> GW 10.10.1.250
My rules :
vyatta@vyatta# show interfaces
ethernet eth0 {
address 192.168.1.250/24
hw-id 00:0c:29:d3:bf:a4
}
ethernet eth1 {
address 10.10.1.250/24
hw-id 00:0c:29:d3:bf:ae
}
loopback lo {
}
[edit]
vyatta@vyatta# show nat
source {
rule 10 {
outbound-interface eth0
source {
address 10.10.1.0/24
}
translation {
address masquerade
}
}
}
[edit]
vyatta@vyatta# show service dhcp-server
shared-network-name ETH1_POOL {
subnet 10.10.1.0/24 {
default-router 10.10.1.250
dns-server 194.158.122.10
start 10.10.1.10 {
stop 10.10.1.50
}
}
}
[edit]
With this , my both network are reachable.
So that i am suspecting in your configuration is a wrong gateway, what is the gateway configured in your DC for example?.
Regards,
Julien
