Configuration steps:

[Eudmeon] ip vpn-instance vpn1 

[Eudmeon-vpn-vpn1] route-distinguisher 100:1
[Eudmeon-vpn-vpn1] quit
[Eudemon] interface GigabitEthernet 1/0/0
[Eudemon-GigabitEthernet1/0/0] ip binding vpn-instance vpn1
[Eudemon-GigabitEthernet1/0/0] ip address 10.10.10.1 24
[Eudemon-GigabitEthernet1/0/0] quit
[Eudemon] interface GigabitEthernet 1/0/1
[Eudemon-GigabitEthernet1/0/1] ip binding vpn-instance vpn1
[Eudemon-GigabitEthernet1/0/1] ip address 202.0.0.1 8
[Eudemon-GigabitEthernet1/0/1] quit
[Eudmeon] firewall zone vpn-instance vpn1 trust 
[Eudmeon-zone-trust-vpn1] add interface GigabitEthernet 1/0/0
[Eudmeon-zone-trust-vpn1] quit
[Eudmeon] firewall zone vpn-instance vpn1 untrust
[Eudmeon-zone-untrust-vpn1] add interface GigabitEthernet 1/0/1

[Eudmeon-zone-untrust-vpn1] quit

good to know

useful document, thanks