Draytek VIGOR2820 series, User Manual, Page: 139 / 269

Vigor2820 Series User’s Guide 131
Confirm Pre-Shared Key- Retype the characters to confirm
the pre-shared key.
IPSec Security Method Medium - Authentication Header (AH) means data will be
authenticated, but not be encrypted. By default, this option is
active.
High - Encapsulating Security Payload (ESP) means
payload (data) will be encrypted and authenticated. You may
select encryption algorithm from Data Encryption Standard
(DES), Triple DES (3DES), and AES.
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To use digital certificate for peer authentication in either LAN-to-LAN connection or
Remote User Dial-In connection, here you may edit a table of peer certificate for selection.
As shown below, the router provides
32 entries of digital certificates for peer dial-in users.
Set to Factory Default Click it to clear all indexes.
Index Click the number below Index to access into the setting page
of IPSec Peer Identity.
Name Display the profile name of that index.
Click each index to edit one peer digital certificate. There are three security levels of digital
signature authentication: Fill each necessary field to authenticate the remote peer. The
following explanation will guide you to fill all the necessary fields.