Using Digital Certificates For Ike Auto-Policy Authentication; Certificate Revocation List (Crl) - NETGEAR FVG318 Reference Manual

Table 6-1. VPN Manual and Auto Policy Configuration Fields (continued)
Field
PFS Key Group
Select IKE Policy

Using Digital Certificates for IKE Auto-Policy Authentication

Digital certificates are strings generated using encryption and authentication schemes that cannot
be duplicated by anyone without access to the different values used in the production of the string.
They are issued by Certification Authorities (CAs) to authenticate a person or a workstation
uniquely. The CAs are authorized to issue these certificates by Policy Certification Authorities
(PCAs), who are in turn certified by the Internet Policy Registration Authority (IPRA). The
FVG318 is able to use certificates to authenticate users at the end points during the IKE key
exchange process (see.
The certificates can be obtained from a certificate server that an organization might maintain
internally or from the established public CAs. The certificates are produced by providing the
particulars of the user being identified to the CA. The information provided may include the user's
name, e-mail ID, and domain name.
Each CA has its own certificate. The certificates of a CA are added to the FVG318 and then can be
used to form IKE policies for the user. Once a CA certificate is added to the FVG318 and a
certificate is created for a user, the corresponding IKE policy is added to the FVG318. Whenever
the user tries to send traffic through the FVG318, the certificates are used in place of pre-shared
keys during initial key exchange as the authentication and key generation mechanism. Once the
keys are established and the tunnel is set up the connection proceeds according to the VPN policy.

Certificate Revocation List (CRL)

Each Certification Authority (CA) maintains a list of the revoked certificates. The list of these
revoked certificates is known as the Certificate Revocation List (CRL).
Advanced Virtual Private Networking
ProSafe 802.11g Wireless VPN Firewall FVG318 Reference Manual
Description
Perfect Forward Secrecy (PFS) improves security. While this is slower, it
will ensure that a Diffie-Hellman exchange is performed for every phase
2 negotiation.
• DH Group 1 (768 bit)
• DH Group 2 (1024 bit)
• DH Group 5 (1536 bit)
The existing IKE policies are presented a drop-down list. You can also
click view selected to review the settings of the selected IKE policy. This
IKE policy will define the characteristics of phase 1 negotiation.
Note: You must create the IKE policy before creating a VPN Auto Policy.
v1.0, September 2007
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