Thanks to their compatibility, NCP secure clients and NCP secure enterprise servers can also communicate with VPN gateways from outside manufacturers.
However, because not all VPN providers support all IPSec protocol enhancements or because IPSec implementations may differ from each other, we've drawn up a compatibility table for you, which is constantly updated.
IPSec compatibility table (as of 13 November 2008)
The following IPSec gateways have been tested successfully with NCP secure clients and NCP secure enterprise servers:
Manufactor | RSA | PSK | XAUTH | IKECFG | NAT-T | QCG | Arkoon Fast 360 | 
| 
| | | 
| 
| Astaro | 
| 
| | | 
| 
| Check Point | 
| 
| *
| | | 
| Cisco | 
| 
| 
| 
| 
| 
| Cisco IOS (12.3) | 
| 
| 
| 
| 
| 
| Collax Business Server | 
| 
| | 
| 
| 
| Concept04 | 
| 
| 
| 
| 
| 
| Cosine | 
| 
| 
| 
| | 
| D-Link (DFL-500) | | 
| | | | 
| DrayTek Vigor 2500We | | 
| | | | 
| F-Secure | | 
| 
| | | 
| Fortinet | 
| 
| **
| | 
| 
| Funkwerk EC (Bintec) | 
| 
| | | 
| 
| FreeSwan | 
| 
| | | 
| 
| Genua, GeNUGate VPN | 
| 
| | 
| | 
| Lancom | 
| 
| | 
| 
| 
| LinkSys | | 
| | | | 
| Netgear FVL 328 | | 
| | | | 
| Netscreen Juniper Networks | 
| 
| 
| | | 
| NCP Secure Enterprise Server | 
| 
| 
| 
| 
| 
| Nuvaja (Callisto) VP1000/VP2000 | 
| 
| 
| 
| 
| 
| Nuvaja (Callisto) VP100-M | 
| 
| 
| 
| 
| 
| Nuvaja (Callisto) VP100 | 
| 
| 
| 
| 
| 
| OpenBSD | 
| 
| | 
| 
| 
| OpenSwan | 
| 
| 
| | 
| 
| Panda GateDefender Integra | 
| 
| | | 
| 
| Pyramid "BenHur II" | 
| 
| | 
| 
| 
| Securepoint GmbH | 
| 
| | | 
| 
| SonicWall | | 
| | | | 
| Symantec 200R | | 
| | | | 
| TelcoTech LiSS series | 
| 
| | | 
| 
| WatchGuard | | 
| | | 
| 
| Watchguard Edge X series | | 
| 
| 
| 
| 
| Zyxel 100 | | 
| | | 
| 
| *) Compatibility with Check Point: Hybrid Authentication
**) Aggressive mode only
The variants shown have been tested successfully at NCP, and by its customers and partners. Variants without a are in line for testing.
Abbreviations: RSA = RSA signature (certificates used) PSK = Preshared Key XAUTH = Extended Authentication IKECFG = IKE Config Mode NAT-T = NAT Traversal QCG = Quick Configuration Guide
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