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Chapter 30 IPSec VPN
ZyWALL USG Series User’s Guide
606
shared key (shared secret), signatures, or public key encryption. Phase 1 operates in either
Main Mode
or
Aggressive Mode
.
Main Mode
protects the identity of the peers, but
Aggressive Mode
does not.
During Phase 2, the remote IPSec routers use the secure channel established in Phase 1 to negotiate
Security Associations for IPSec. The negotiation results in a minimum of two unidirectional security
associations (one inbound and one outbound). Phase 2 uses Quick Mode (only). Quick mode occurs
after IKE has established the secure tunnel in Phase 1. It negotiates a shared IPSec policy, derives shared
secret keys used for the IPSec security algorithms, and establishes IPSec SAs. Quick mode is also used to
renegotiate a new IPSec SA when the IPSec SA lifetime expires.
In the Zyxel Device, use the
VPN Connection
tab to set up Phase 2 and the
VPN Gateway
tab to set up
Phase 1.
Some differences between IKEv1 and IKEv2 include:
• IKEv2 uses less bandwidth than IKEv1. IKEv2 uses one exchange procedure with 4 messages. IKEv1 uses
two phases with Main Mode (9 messages) or Aggressive Mode (6 messages) in phase 1.
• IKEv2 supports Extended Authentication Protocol (EAP) authentication, and IKEv1 supports X-Auth.
EAP is important when connecting to existing enterprise authentication systems.
• IKEv2 always uses NAT traversal and Dead Peer Detection (DPD), but they can be disabled in IKEv1
using Zyxel Device firmware (the default is on).
• Configuration payload (includes the IP address pool in the VPN setup data) is supported in IKEv2 (off
by default), but not in IKEv1.
• Narrowed is supported in IKEv2, but not in IKEv1. Narrowed has the SA apply only to IP addresses in
common between the Zyxel Device and the remote IPSec router.
• The IKEv2 protocol supports connectivity checks which is used to detect whether the tunnel is still up
or not. If the check fails (the tunnel is down), IKEv2 can re-establish the connection automatically. The
Zyxel Device uses firmware to perform connectivity checks when using IKEv1.
SSL VPN
SSL VPN uses remote users’ web browsers to provide the easiest-to-use of the Zyxel Device’s VPN
solutions. A user just browses to the Zyxel Device’s web address and enters his user name and password
to securely connect to the Zyxel Device’s network. Remote users do not need to configure security
settings. Here a user uses his browser to securely connect to network resources in the same way as if he
were part of the internal network. See
Figure 427
SSL VPN
Web Mail
File Share
Web-based Application
https://
Application Server
Non-Web
LAN (192.168.1.X)
Содержание USG110
Страница 27: ...27 PART I User s Guide ...
Страница 67: ...Chapter 2 Initial Setup Wizard ZyWALL USG Series User s Guide 67 Figure 41 Object Service Service Group HTTPS ...
Страница 195: ...195 PART II Technical Reference ...
Страница 282: ...Chapter 9 Wireless ZyWALL USG Series User s Guide 282 Figure 229 Configuration Wireless AP Management AP Group Add Edit ...
Страница 309: ...Chapter 10 Interfaces ZyWALL USG Series User s Guide 309 ...
Страница 310: ...Chapter 10 Interfaces ZyWALL USG Series User s Guide 310 Configuration Network Interface Ethernet Edit External Type ...
Страница 312: ...Chapter 10 Interfaces ZyWALL USG Series User s Guide 312 Configuration Network Interface Ethernet Edit Internal Type ...
Страница 313: ...Chapter 10 Interfaces ZyWALL USG Series User s Guide 313 ...
Страница 314: ...Chapter 10 Interfaces ZyWALL USG Series User s Guide 314 Figure 246 Configuration Network Interface Ethernet Edit OPT ...
Страница 315: ...Chapter 10 Interfaces ZyWALL USG Series User s Guide 315 Configuration Network Interface Ethernet Edit OPT ...
Страница 334: ...Chapter 10 Interfaces ZyWALL USG Series User s Guide 334 Figure 255 Configuration Network Interface PPP Add ...
Страница 342: ...Chapter 10 Interfaces ZyWALL USG Series User s Guide 342 Figure 257 Configuration Network Interface Cellular Add Edit ...
Страница 357: ...Chapter 10 Interfaces ZyWALL USG Series User s Guide 357 Figure 267 Configuration Network Interface VLAN Add Edit ...
Страница 358: ...Chapter 10 Interfaces ZyWALL USG Series User s Guide 358 ...
Страница 372: ...Chapter 10 Interfaces ZyWALL USG Series User s Guide 372 Figure 269 Configuration Network Interface Bridge Add Edit ...
Страница 373: ...Chapter 10 Interfaces ZyWALL USG Series User s Guide 373 ...
Страница 565: ...Chapter 25 Walled Garden ZyWALL USG Series User s Guide 565 Figure 399 Walled Garden Login Example ...
Страница 613: ...Chapter 30 IPSec VPN ZyWALL USG Series User s Guide 613 Figure 431 Configuration VPN IPSec VPN VPN Connection Add Edit ...
Страница 621: ...Chapter 30 IPSec VPN ZyWALL USG Series User s Guide 621 Figure 433 Configuration VPN IPSec VPN VPN Gateway Add Edit ...
Страница 651: ...Chapter 31 SSL VPN ZyWALL USG Series User s Guide 651 Figure 454 Create a Web Application SSL Application Object ...
Страница 664: ...Chapter 32 SSL User Screens ZyWALL USG Series User s Guide 664 4 Next run and log into the SecuExtender client ...
Страница 730: ...Chapter 38 IDP ZyWALL USG Series User s Guide 730 Figure 508 Configuration UTM Profile IDP Custom Signatures Add Edit ...
Страница 784: ...Chapter 42 Device HA ZyWALL USG Series User s Guide 784 Figure 541 Configuration Device HA Device HA ...
Страница 929: ...Chapter 44 System ZyWALL USG Series User s Guide 929 Figure 648 Configuration System WWW Login Page Desktop View ...
Страница 978: ...Chapter 45 Log and Report ZyWALL USG Series User s Guide 978 Figure 696 Log Category Settings AC ...
Страница 1011: ...Chapter 47 Diagnostics ZyWALL USG Series User s Guide 1011 Figure 720 Maintenance Diagnostics Network Tool ...