Security over ATM

[Venicio Vilas-Bôas]

Dear Tina Bird

         I am considering to use VPN for connect site to site. There are
small sites with little traffic. Our solution is based in Cisco routers.
For connect these sites was offered a solution denominated "IP intranet"
which uses IP over ATM and IP over frame relay. This solution was being
offered by Embratel ( One MCI carrier telecommunication in Brazil).
I would like to know  whether I can use this solution only (IP over ATM and
IP over frame relay) instead of solution with VPN.
The telecommunication people affirms that there are no problems in use this
solution offered by carrier because the traffic passes through of one
single backbone and the problem of security will be resolved.
I have a lot of doubts because I read a article denominated "A survey on
ATM Security" where they speak about security in ATM evolving:

-Eavesdropping
- Spoofing
- Service Denial
- Stealing of VCs
- Traffic Analysis

I would be grateful for some  tips which will be help us to make a good
decision.

Kind regards

Venicio

VPN is sponsored by SecurityFocus.COM