This has stateful-packet firewall, VPN & Failover.
More details on the SME570 can be found here:
http://www.snapgear.com/sme570.html
Our SnapGear site:
http://www.infowest.ca/snapgear/
Regards,
Jeff Young
Sonicwall Pro 3060 (with enhanced OS upgrade) or Pro 4060, as a
replacement for your firewall.
Or, you can put a dual-wan router between your internet connections
and the firewall, have one nat between the router and the firewall,
and then use the firewall as before. Some products:
www.astrocorp.com -- PowerLink (industrial strength product)
Hawking Technology sells one
Xincom sells one too.