ZyXEL Vantage CNM User Guide - Page 143

Chapter 6 Device Security Settings Table 50 Device Operation > Device Configuration > Security > VPN > VPN Rules (IKE) > Gateway Policy Add/Edit LABEL DESCRIPTION Pre-Shared Key Select the Pre-Shared Key radio button and type your pre-shared key in this field. A pre-shared key identifies a communicating party during a phase 1 IKE negotiation. It is called "pre-shared" because you have to share it with another party before you can communicate with them over a secure connection. Type from 8 to 31 case-sensitive ASCII characters or from 16 to 62 hexadecimal ("0-9", "A-F") characters. You must precede a hexadecimal key with a "0x (zero x), which is not counted as part of the 16 to 62 character range for the key. For example, in "0x0123456789ABCDEF", 0x denotes that the key is hexadecimal and 0123456789ABCDEF is the key itself. Certificate Both ends of the VPN tunnel must use the same pre-shared key. You will receive a PYLD_MALFORMED (payload malformed) packet if the same pre-shared key is not used on both ends. Select the Certificate radio button to identify the device by a certificate. Local ID Type Use the drop-down list box to select the certificate to use for this VPN tunnel. You must have certificates already configured in the My Certificates screen. Click My Certificates to go to the My Certificates screen where you can view the device's list of certificates. Select IP to identify this device by its IP address. Select DNS to identify this device by a domain name. Select E-mail to identify this device by an e-mail address. Content You do not configure the local ID type and content when you set Authentication Key to Certificate. The device takes them from the certificate you select. When you select IP in the Local ID Type field, type the IP address of your computer in the local Content field. The device automatically uses the IP address in the My ZyWALL field (refer to the My ZyWALL field description) if you configure the local Content field to 0.0.0.0 or leave it blank. It is recommended that you type an IP address other than 0.0.0.0 in the local Content field or use the DNS or E-mail ID type in the following situations. • When there is a NAT router between the two IPSec routers. • When you want the remote IPSec router to be able to distinguish between VPN connection requests that come in from IPSec routers with dynamic WAN IP addresses. When you select DNS or E-mail in the Local ID Type field, type a domain name or e-mail address by which to identify this device in the local Content field. Use up to 31 ASCII characters including spaces, although trailing spaces are truncated. The domain name or e-mail address is for identification purposes only and can be any string. Vantage CNM User's Guide 143