ZyXEL Communications P-335WT - Manual (Page 221)

P-335 Series User’s Guide
Chapter 17 VPN Screens 221
17.8 ID Type and Content
With aggressive negotiation mode (see Section Negotiation Mode), the Prestige identifies
incoming SAs by ID type and content since this identifying information is not encrypted. This
enables the Prestige 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 Prestige from IPSec routers with dynamic IP
addresses (see
the Telecommuter VPN/IPSec Examples section for a telecommuter
configuration example).
Note: Regardless of the ID type and content configuration, the
Prestige does not allow you to save multiple active rules with
overlapping local and remote IP addresses.
With main mode (see Section Negotiation Mode), the ID type and content are encrypted to
provide identity protection. In this case the Prestige can only distinguish between up to eight
different incoming SAs that connect from remote IPSec routers that have dynamic WAN IP
addresses. The Prestige can distinguish up to eight incoming SAs because you can select
between three encryption algorithms (DES and 3DES), two authentication algorithms (MD5
and SHA1) and two key groups (DH1 and DH2) when you configure a VPN rule (
the
Configuring Advanced IKE Settings section ). 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 70 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 Prestige
automatically use its own IP address.
DNS Type a domain name (up to 31 characters) by which to identify this Prestige.
E-mail Type an e-mail address (up to 31 characters) by which to identify this Prestige.
The domain name or e-mail address that you use in the Content field is used for identification purposes
only and does not need to be a real domain name or e-mail address.
Table 71 Peer ID Type and Content Fields
PEER ID TYPE CONTENT
IP Type the IP address of the computer with which you will make the VPN connection or
leave the field blank to have the Prestige automatically use the address in the Secure
Gateway Address field.
DNS Type a domain name (up to 31 characters) by which to identify the remote IPSec
router.