ZyXEL Communications ZYWALL USG 20 Manual page 418

Chapter 23 IPSec VPN
Router identity consists of ID type and content. The ID type can be domain name,
IP address, or e-mail address, and the content is a (properly-formatted) domain
name, IP address, or e-mail address. The content is only used for identification.
Any domain name or e-mail address that you enter does not have to actually
exist. Similarly, any domain name or IP address that you enter does not have to
correspond to the ZyWALL's or remote IPSec router's properties.
The ZyWALL and the remote IPSec router have their own identities, so both of
them must store two sets of information, one for themselves and one for the other
router. Local ID type and content refers to the ID type and content that applies to
the router itself, and peer ID type and content refers to the ID type and content
that applies to the other router.
Note: The ZyWALL's local and peer ID type and content must match the remote
IPSec router's peer and local ID type and content, respectively.
For example, in
authenticate each other successfully. In contrast, in
ZyWALL and the remote IPSec router cannot authenticate each other and,
therefore, cannot establish an IKE SA.
Table 119 VPN Example: Matching ID Type and Content
ZYWALL
Local ID type: E-mail
Local ID content: tom@yourcompany.com
Peer ID type: IP
Peer ID content: 1.1.1.2
Table 120 VPN Example: Mismatching ID Type and Content
ZYWALL
Local ID type: E-mail
Local ID content: tom@yourcompany.com
Peer ID type: IP
Peer ID content: 1.1.1.20
It is also possible to configure the ZyWALL to ignore the identity of the remote
IPSec router. In this case, you usually set the peer ID type to Any. This is less
secure, so you should only use this if your ZyWALL provides another way to check
418
X
Table 119 on page
5
6
418, the ZyWALL and the remote IPSec router
Table 120 on page
REMOTE IPSEC ROUTER
Local ID type: IP
Local ID content: 1.1.1.2
Peer ID type: E-mail
Peer ID content: tom@yourcompany.com
REMOTE IPSEC ROUTER
Local ID type: IP
Local ID content: 1.1.1.2
Peer ID type: E-mail
Peer ID content: tom@yourcompany.com
ZyWALL USG 20/20W User's Guide
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