VPN client gets connected but cannot ping LOCAL LAN "AVAYA SR2330"

[hdaoudi]

I'm working on AVAYA SR 2330, I explain y the senario:

i'm using 2 interfaces of SR2330:
(private interface):interface ethernet 0/1 connectd directly to 1 pc

(public interface): interface ethernet 0/2 connectd to SAGEM BOX ADSL To internet.

private Network: 192.168.2.0/24
Public Network: Interface 0/2: 10.10.10.1 ------->Sagem: 10.10.10.4
ip route: 0.0.0.0 0.0.0.0 10.10.10.4
because i don't have Fix IP Public

Question:

1-> if i use Pool belongs to my private Network: 192.168.2.0/24
I can ping all devices connected on my Network;

2->When using Pool different of my Private Network: i can only ping my private interface 0/2 (192.168.2.14), But can not ping all other network??

May be i need the NAT or Somme routing......

Any help please
Thank you in advance