ZyXEL ZyWALL USG 2000 User Guide - Page 462

Chapter 25 IPSec VPN Table 121 Configuration > VPN > IPSec VPN > VPN Gateway > Edit (continued) LABEL DESCRIPTION Content This field is disabled if the Peer ID Type is Any. Type the identity of the remote IPSec router during authentication. The identity depends on the Peer ID Type. If the ZyWALL and remote IPSec router do not use certificates, IP - type an IP address; see the note at the end of this description. DNS - type the domain name; you can use up to 31 ASCII characters including spaces, although trailing spaces are truncated. This value is only used for identification and can be any string. E-mail - the ZyWALL is identified by an e-mail address; you can use up to 31 ASCII characters including spaces, although trailing spaces are truncated. This value is only used for identification and can be any string. If the ZyWALL and remote IPSec router use certificates, type the following fields from the certificate used by the remote IPSec router. IP - subject alternative name field; see the note at the end of this description. DNS - subject alternative name field E-mail - subject alternative name field Subject Name - subject name (maximum 255 ASCII characters, including spaces) Note: If Peer ID Type is IP, please read the rest of this section. Phase 1 Settings SA Life Time (Seconds) If you type 0.0.0.0, the ZyWALL uses the IP address specified in the Secure Gateway Address field. This is not recommended in the following situations: • There is a NAT router between the ZyWALL and remote IPSec router. • You want the remote IPSec router to be able to distinguish between IPSec SA requests that come from IPSec routers with dynamic WAN IP addresses. In these situations, use a different IP address, or use a different Peer ID Type. Type the maximum number of seconds the IKE SA can last. When this time has passed, the ZyWALL and remote IPSec router have to update the encryption and authentication keys and re-negotiate the IKE SA. This does not affect any existing IPSec SAs, however. 462 ZyWALL USG 2000 User's Guide