Topic: URGENT special SME config

[haj]

On my local network I have 2 SME server:
- the first is a gateway to internet (using adsl over PPPOE)
- the second is configured as private gateway with pppoe connection to a private network

1) My second SME need an internet connection to the internet using the fisrt as the gateway. To do that I have add a route:
# route add gw 192.168.0.254
That works: is that secure?

2) My second SME needs access from Internet. So I have added proxy pass directive to my first to pass domain.com to my second. That works in server mode but not in private gateway mode: it blocks any access to an ip not from local network...
How can I tell my second SME to accept access to ports 80, 443 to MyIbays or domain.com only from any ip coming througt local ethernet adapter ?

3) I wan't to password protect my second SME gateway. Is it possible ?

Thanks in advance