Atlantis Land A02-WRA4-54G 사용자 설명서

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                                                                                              I-FLY WIRELESS ROUTER ADSL 
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MD5: A one-way hashing algorithm that produces a 128-bit hash. 
• 
SHA-1: A one-way hashing algorithm that produces a 160-bit hash. 
•  Encryption: Select the encryption method from the pull-down menu. There are four options, 
DES, 3DES, AES and NONE. NONE means it is a tunnel only with no encryption. 3DES and 
AES are more powerful but increase latency. 
• 
  DES: Stands for Data Encryption Standard, it uses 56 bits as an encryption method. 
• 
  3DES:  Stands for Triple Data Encryption Standard, it uses  168  (56*3)  bits  as  an            
encryption method. 
• 
  AES: Stands for Advanced Encryption Standards, it uses 128 bits as an encryption 
method. 
Perfect Forward Secrecy: Choose whether to enable PFS using Diffie-Hellman publickey 
cryptography to change encryption keys during the second phase of VPN negotiation. This function 
will provide better security, but extends the VPN negotiation time. Diffie- Hellman is a public-key 
cryptography protocol that allows two parties to establish a shared secret over an unsecured 
communication channel (i.e. over the Internet). There are three modes, MODP 768-bit, MODP 1024-
bit and MODP 1536-bit. MODP stands for Modular Exponentiation Groups. 
 
Pre-shared Key: 
This is for the Internet Key Exchange (IKE) protocol, a string from 4 to 128 
characters. Both sides should use the same key. IKE is used to establish a shared security policy and 
authenticated keys for services (such as IPSec) that require a key. 
Before any IPSec traffic can be passed, each router must be able to verify the identity of its peer. This 
can be done by manually entering the pre-shared key into both sides (router or hosts). 
 
Select the Save button to save the setting. 
 
Click Advanced Option to change the following settings: