ZyXEL Communications P-662HW-D - Figure 131 VPN Host Using Intranet DNS Server Example; ID Type and Content; Table 89 Local ID Type and Content Fields

Chapter 16 VPN Screens
P-662H/HW-D Series User’s Guide
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Figure 131 VPN Host using Intranet DNS Server Example
If you do not specify an Intranet DNS server on the remote network, then the VPN host must
use IP addresses to access the computers on the remote network.
16.9 ID Type and Content
With aggressive negotiation mode (see Section 16.12.1 on page 234), the ZyXEL Device
identifies incoming SAs by ID type and content since this identifying information is not
encrypted. This enables the ZyXEL Device to distinguish between multiple rules for SAs that
connect from remote IPSec routers that have dynamic WAN IP addresses. Telecommuters can
use separate passwords to simultaneously connect to the ZyXEL Device from IPSec routers
with dynamic IP addresses (see Section 16.18 on page 243 for a telecommuter configuration
example).
Regardless of the ID type and content configuration, the ZyXEL Device does not allow you to
save multiple active rules with overlapping local and remote IP addresses.
With main mode (see Section 16.12.1 on page 234), the ID type and content are encrypted to
provide identity protection. In this case the ZyXEL Device can only distinguish between up to
12 different incoming SAs that connect from remote IPSec routers that have dynamic WAN IP
addresses. The ZyXEL Device can distinguish up to 12 incoming SAs because you can select
between three encryption algorithms (DES, 3DES and AES), two authentication algorithms
(MD5 and SHA1) and two key groups (DH1 and DH2) when you configure a VPN rule (see
Section 16.13 on page 235). The ID type and content act as an extra level of identification for
incoming SAs.
The type of ID can be a domain name, an IP address or an e-mail address. The content is the IP
address, domain name, or e-mail address.
Table 89 Local ID Type and Content Fields
LOCAL ID TYPE= CONTENT=
IP Type the IP address of your computer or leave the field blank to have the ZyXEL
Device automatically use its own IP address.
DNS Type a domain name (up to 31 characters) by which to identify this ZyXEL Device.