Why Does NAT Compatibility Matter?
IPv4 NATs widely deployed
- 20+ percent of firewalls are NAT-based?
- Virtually all dialup gateways, ADSL routers are NAT-capable
- Growing proportion of users installing independent NATs
- 50 percent of cable modem users install NATs on their own??
- Hundreds of hotel installations are NAT-based
Primary current application of IPSEC is VPN (e.g. telecommuting, gateway-gateway)
Increasing proportion of telecommuters now utilizing home gateways with NAT support
Result: IPSEC deployment blocked for many potential users
- Increasing demand for NAT-compatible solutions (e.g. SSL)