Problems Using Network Security Features - Epson DS-790WN Administrator's Manual

Advanced Security Settings

Problems Using Network Security Features

Forgot a Pre–shared Key
Re-configure a pre-shared key.
To change the key, access Web Config and select the Network Security tab > IPsec/IP Filtering > Basic > Default
Policy or Group Policy.
When you change the pre-shared key, configure the pre-shared key for computers.
Related Information
"Running Web Config on a Web Browser" on page 34
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"Encrypted Communication Using IPsec/IP Filtering" on page 101
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Cannot Communicate with IPsec Communication
Specify the algorithm that the scanner or the computer does not support.
The scanner supports the following algorithms. Check the settings of the computer.
Security Methods
IKE encryption algorithm
IKE authentication algorithm
IKE key exchange algorithm
ESP encryption algorithm
ESP authentication algorithm
AH authentication algorithm
*available for IKEv2 only
Related Information
"Encrypted Communication Using IPsec/IP Filtering" on page 101
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Cannot Communicate Suddenly
The IP address of the scanner has been changed or cannot be used.
When the IP address registered to the local address on Group Policy has been changed or cannot be used, IPsec
communication cannot be performed. Disable IPsec using the scanner's control panel.
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Solving Problems for Advanced Security
AES-CBC-128, AES-CBC-192, AES-CBC-256, AES-GCM-128*, AES-GCM-192*,
AES-GCM-256*, 3DES
SHA-1, SHA-256, SHA-384, SHA-512, MD5
DH Group1, DH Group2, DH Group5, DH Group14, DH Group15, DH
Group16, DH Group17, DH Group18, DH Group19, DH Group20, DH
Group21, DH Group22, DH Group23, DH Group24, DH Group25, DH
Group26, DH Group27*, DH Group28*, DH Group29*, DH Group30*
AES-CBC-128, AES-CBC-192, AES-CBC-256, AES-GCM-128, AES-GCM-192,
AES-GCM-256, 3DES
SHA-1, SHA-256, SHA-384, SHA-512, MD5
SHA-1, SHA-256, SHA-384, SHA-512, MD5
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Problems Using Network Security
Algorithms
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