Solving Problems For Advanced Security - Epson EcoTank L6550 Series User Manual

Administrator Information

Solving Problems for Advanced Security

Restoring the Security Settings
When you establish a highly secure environment such as IPsec/IP Filtering or IEEE802.1X, you may not be able to
communicate with devices because of incorrect settings or trouble with the device or server. In this case, restore
the security settings in order to make settings for the device again or to allow you temporary use.
Disabling the Security Function Using the Control Panel
You can disable IPsec/IP Filtering or IEEE802.1X using the printer's control panel.
1. Select Settings > General Settings > Network Settings.
2. Select Advanced.
3. Select from the following items that you want to disable.
❏ Disable IPsec/IP Filtering
❏ Disable IEEE802.1X
4. Select Start Setup on the confirmation screen.
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
"Application for Configuring Printer Operations (Web Config)" on page 298
&
"Encrypted Communication Using IPsec/IP Filtering" on page 431
&
Cannot Communicate with IPsec Communication
Specify the algorithm that the printer or the computer does not support.
The printer supports the following algorithms. Check the settings of the computer.
Security Methods
IKE encryption algorithm
>
Advanced Security Settings
AES-CBC-128, AES-CBC-192, AES-CBC-256, AES-GCM-128*, AES-GCM-192*,
AES-GCM-256*, 3DES
446
>
Solving Problems for Advanced Security
Algorithms