Chapter 25 IPSec VPN
ZyWALL USG 100/200 Series User’s Guide
502
NAT Traversal
Select this if any of these conditions are satisfied.
• This IKE SA might be used to negotiate IPSec SAs that use ESP as
the active protocol.
• There are one or more NAT routers between the ZyWALL and
remote IPSec router, and these routers do not support IPSec
pass-thru or a similar feature.
The remote IPSec router must also enable NAT traversal, and the
NAT routers have to forward packets with UDP port 500 and UDP
4500 headers unchanged.
Dead Peer
Detection
(DPD)
Select this check box if you want the ZyWALL to make sure the
remote IPSec router is there before it transmits data through the IKE
SA. The remote IPSec router must support DPD. If there has been no
traffic for at least 15 seconds, the ZyWALL sends a message to the
remote IPSec router. If the remote IPSec router responds, the
ZyWALL transmits the data. If the remote IPSec router does not
respond, the ZyWALL shuts down the IKE SA.
If the remote IPSec router does not support DPD, see if you can use
the VPN connection connectivity check (see
More Settings/
Less Settings
Click this button to show or hide the
Extended Authentication
fields.
Extended
Authentication
When multiple IPSec routers use the same VPN tunnel to connect to
a single VPN tunnel (telecommuters sharing a tunnel for example),
use extended authentication to enforce a user name and password
check. This way even though they all know the VPN tunnel’s security
settings, each still has to provide a unique user name and password.
Enable Extended
Authentication
Select this if one of the routers (the ZyWALL or the remote IPSec
router) verifies a user name and password from the other router
using the local user database and/or an external server.
Server Mode
Select this if the ZyWALL authenticates the user name and password
from the remote IPSec router. You also have to select the
authentication method, which specifies how the ZyWALL
authenticates this information.
Client Mode
Select this radio button if the ZyWALL provides a username and
password to the remote IPSec router for authentication. You also
have to provide the
User Name
and the
Password
.
User Name
This field is required if the ZyWALL is in
Client Mode
for extended
authentication. Type the user name the ZyWALL sends to the remote
IPSec router. The user name can be 1-31 ASCII characters. It is
case-sensitive, but spaces are not allowed.
Password
This field is required if the ZyWALL is in
Client Mode
for extended
authentication. Type the password the ZyWALL sends to the remote
IPSec router. The password can be 1-31 ASCII characters. It is case-
sensitive, but spaces are not allowed.
OK
Click
OK
to save your settings and exit this screen.
Cancel
Click
Cancel
to exit this screen without saving.
Table 132
Configuration > VPN > IPSec VPN > VPN Gateway > Edit (continued)
LABEL
DESCRIPTION
Summary of Contents for ZyWALL USG 100 Series
Page 2: ......
Page 30: ...Table of Contents ZyWALL USG 100 200 Series User s Guide 30 ...
Page 31: ...31 PART I User s Guide ...
Page 32: ...32 ...
Page 46: ...Chapter 2 Features and Applications ZyWALL USG 100 200 Series User s Guide 46 ...
Page 64: ...Chapter 3 Web Configurator ZyWALL USG 100 200 Series User s Guide 64 ...
Page 186: ...Chapter 7 Tutorials ZyWALL USG 100 200 Series User s Guide 186 ...
Page 223: ...Chapter 8 L2TP VPN Example ZyWALL USG 100 200 Series User s Guide 223 ...
Page 224: ...Chapter 8 L2TP VPN Example ZyWALL USG 100 200 Series User s Guide 224 ...
Page 225: ...225 PART II Technical Reference ...
Page 226: ...226 ...
Page 240: ...Chapter 9 Dashboard ZyWALL USG 100 200 Series User s Guide 240 ...
Page 284: ...Chapter 10 Monitor ZyWALL USG 100 200 Series User s Guide 284 ...
Page 372: ...Chapter 13 Interfaces ZyWALL USG 100 200 Series User s Guide 372 ...
Page 382: ...Chapter 14 Trunks ZyWALL USG 100 200 Series User s Guide 382 ...
Page 398: ...Chapter 15 Policy and Static Routes ZyWALL USG 100 200 Series User s Guide 398 ...
Page 412: ...Chapter 16 Routing Protocols ZyWALL USG 100 200 Series User s Guide 412 ...
Page 432: ...Chapter 19 NAT ZyWALL USG 100 200 Series User s Guide 432 ...
Page 437: ...Chapter 20 HTTP Redirect ZyWALL USG 100 200 Series User s Guide 437 ...
Page 438: ...Chapter 20 HTTP Redirect ZyWALL USG 100 200 Series User s Guide 438 ...
Page 460: ...Chapter 23 Authentication Policy ZyWALL USG 100 200 Series User s Guide 460 ...
Page 478: ...Chapter 24 Firewall ZyWALL USG 100 200 Series User s Guide 478 ...
Page 519: ...Chapter 25 IPSec VPN ZyWALL USG 100 200 Series User s Guide 519 ...
Page 520: ...Chapter 25 IPSec VPN ZyWALL USG 100 200 Series User s Guide 520 ...
Page 534: ...Chapter 26 SSL VPN ZyWALL USG 100 200 Series User s Guide 534 ...
Page 544: ...Chapter 27 SSL User Screens ZyWALL USG 100 200 Series User s Guide 544 ...
Page 546: ...Chapter 28 SSL User Application Screens ZyWALL USG 100 200 Series User s Guide 546 ...
Page 554: ...Chapter 29 SSL User File Sharing ZyWALL USG 100 200 Series User s Guide 554 ...
Page 639: ...Chapter 34 IDP ZyWALL USG 100 200 Series User s Guide 639 ...
Page 640: ...Chapter 34 IDP ZyWALL USG 100 200 Series User s Guide 640 ...
Page 661: ...Chapter 35 ADP ZyWALL USG 100 200 Series User s Guide 661 ...
Page 662: ...Chapter 35 ADP ZyWALL USG 100 200 Series User s Guide 662 ...
Page 694: ...Chapter 37 Content Filter Reports ZyWALL USG 100 200 Series User s Guide 694 ...
Page 712: ...Chapter 38 Anti Spam ZyWALL USG 100 200 Series User s Guide 712 ...
Page 734: ...Chapter 39 Device HA ZyWALL USG 100 200 Series User s Guide 734 ...
Page 750: ...Chapter 40 User Group ZyWALL USG 100 200 Series User s Guide 750 ...
Page 756: ...Chapter 41 Addresses ZyWALL USG 100 200 Series User s Guide 756 ...
Page 768: ...Chapter 43 Schedules ZyWALL USG 100 200 Series User s Guide 768 ...
Page 784: ...Chapter 45 Authentication Method ZyWALL USG 100 200 Series User s Guide 784 ...
Page 806: ...Chapter 46 Certificates ZyWALL USG 100 200 Series User s Guide 806 ...
Page 818: ...Chapter 48 SSL Application ZyWALL USG 100 200 Series User s Guide 818 ...
Page 828: ...Chapter 49 Endpoint Security ZyWALL USG 100 200 Series User s Guide 828 ...
Page 880: ...Chapter 50 System ZyWALL USG 100 200 Series User s Guide 880 ...
Page 920: ...Chapter 54 Reboot ZyWALL USG 100 200 Series User s Guide 920 ...
Page 922: ...Chapter 55 Shutdown ZyWALL USG 100 200 Series User s Guide 922 ...
Page 942: ...Chapter 56 Troubleshooting ZyWALL USG 100 200 Series User s Guide 942 ...
Page 954: ...Chapter 57 Product Specifications ZyWALL USG 100 200 Series User s Guide 954 ...
Page 1126: ...Appendix F Open Software Announcements ZyWALL USG 100 200 Series User s Guide 1126 ...