ZyXEL Communications P-661HW-D Series Support Note page 4

General FAQ...........................................................................................30
1. What is VPN? .......................................................................30
2. Why do I need VPN? ............................................................30
3. What are most common VPN protocols?..............................30
4. What is PPTP? .....................................................................30
5. What is L2TP? ......................................................................31
6. What is IPSec? .....................................................................31
7. What secure protocols does IPSec support?........................31
8. What are the differences between 'Transport mode' and
'Tunnel mode'? .........................................................................31
9. What is SA?..........................................................................32
10. What is IKE?.......................................................................32
11. What is Pre-Shared Key? ...................................................32
12. What are the differences between IKE and manual key VPN?
.................................................................................................32
13. What is Phase 1 ID for?......................................................32
14. What is FQDN? ..................................................................33
15. When should I use FQDN?.................................................33
Advanced FAQ .......................................................................................33
1. How do I configure VPN? .....................................................33
2. What kind of VPN protocols are supported on P-661HW-D?
.................................................................................................34
3. What types of encryption does P-661HW-D VPN support?..34
4. What types of authentication does P-661HW-D VPN support?
.................................................................................................34
5. I am planning my P-661HW-D VPN configuration. What do I
need to know? ..........................................................................34
6. Does P-661HW-D support dynamic secure gateway IP? .....35
7. What VPN gateway has been tested with P-661HW-D
successfully? ............................................................................35
8. What VPN software has been tested with P-661HW-D
successfully? ...........................................................................36
11. How do I configure P-661HW-D with NAT for internal
servers?....................................................................................37
12. I am planning my P-661HW-D behind a NAT router. What do
I need to know? ........................................................................37
13. How can I keep a tunnel alive?...........................................37
14. Single, Range, Subnet, which types of IP address do
P-661HW-D support in VPN/IPSec?.........................................38
15. Can P-661HW-D support VPN passthrough?.....................38
16. Can P-661HW-D behave as a NAT router supporting IPSec
passthrough and an IPSec gateway simultaneously? ..............38
Wireless FAQ ............................................................................................39
General FAQ...........................................................................................39
All contents copyright © 2006 ZyXEL Communications Corporation.
P-661HW-D Series Support Notes
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