Grandstream Networks HT881

Security Settings
Web/SSH Access
Web Access Mode Sets web page access protocol, the options are: HTTP, HTTPS, Disabled
HTTP Web Port Denes the HTTP Web Port, defaut is 80
HTTPS Web Port Denes the HTTPS Web Port, defaut is 443
Web Session Timeout Denes the web session timeout, default value is 10 Minutes, the valid range is 1-60 minutes
Web Access Attempt Limit Denes the Web Access Attempt Limit before locking the web access, default is 5, valid range is 1-10
Web Lockout Duration Denes for how long the web access will be locked, default value is 15 Minutes, valid range is 0-60 Minutes
Disable User Level Web Access
Disables or enables user-level web access.
Default value is "Yes" : the user level web access is disabled.
Disable Viewer Level Web Access
Disables or enables viewer-level web access.
Default value is "Yes" : the viewer level web access is disabled.
Disable SSH
If set to "No", the phone will allow SSH access,
Set to "No" by default
SSH Port Denes the SSH port, default is 22. Cannot be the same as Telnet Port.
Disable Telnet Enables/disables Telnet access. The default is "Yes"
Telnet Port Denes the telnet port, the default is 23. Cannot be the same as SSH Port.
Security Controls for SSH/Telent
Access
Species security measures and controls that apply to the SSH/Telnet protocol to ensure secure and
authorized access to the device, the following options are supported
● Only Allow SSH private IP users to set system Pvalue: This option permits only users with SSH access
from private IP addresses to modify specic system-level conguration parameters (system Pvalues).
● Allow all SSH users to set system Pvalue: With this setting, all users having SSH access can modify
specic system-level conguration parameters (system Pvalues).
● Allow all SSH users to set any Pvalue: This allows all users with SSH access to modify any conguration
parameter (P-value).
● Allow any user to set any Pvalue: Any user, regardless of their privileges, can modify any conguration
parameter (Pvalue) through SSH or Telnet access.
● Prohibit setting Pvalue: This option blocks all users from modifying any conguration parameter (Pvalue)
via SSH or Telnet access.
The Default Value is "Allow any user to set any PValue"
WAN Side Web/SSH Access
Enables/Disables the Web and SSH access through the WAN port. The available options are the following:
● No: No access to the web or SSH from any IP address on the WAN side.
● Yes: Access for the Web GUI and SSH is enabled on the WAN side.
● Auto: Only private IP could access the web or SSH on the WAN side.
Default setting is Yes.
White List for WAN Side If WAN Side Web/SSH Access is set to Yes or Auto. Users can congure the white List for WAN Side to be
used for remote management.
Multiple IPs are supported and need to be separated by space.