37D-Link DWR-555 User Manual
Section 3 - Configuration
IKE PROPOSAL SETTINGS
DH  Group:  Three  groups  can  be 
selected:  group  1  (MODP768), 
group 2 (MODP1024), and group 5 
(MODP1536).
Three  algorithms  can  be  selected: 
3DES, DES, and AES.
Two algorithms can be selected: SHA1 and MD5.
Select this checkbox to enable the IKE Proposal with this rule.
IPSEC PROPOSAL SETTINGS
Three  algorithms  can  be  selected: 
3DES,  DES  and  AES.  However, 
when the encapsulation protocol is 
set  to  AH,  encryption  algorithm  is 
unnecessary.
Two algorithms can be selected: SHA1 and MD5.
DH Group:
 
Encryption Algorithm:
 
Authentication Algorithm:
Enable:
Encryption Algorithm:
Authentication Algorithm: