Setting Methods for Individual Protocols
The methods that you can use to make protocol settings vary depending on the protocol. The following are the setting methods available for individual protocols and some precautions you should take when each protocol is disabled.
Web Image Monitor, one of the setting methods, is a management tool installed on this machine to monitor it or configure its settings via web browser.
Protocol | Port | Setting method | When disabled |
|---|---|---|---|
IPv4 | - |
| All applications that operate over IPv4 cannot be used. IPv4 cannot be disabled from Web Image Monitor when using IPv4 transmission. |
IPv6 | - |
| All applications that operate over IPv6 cannot be used. |
IPsec | - |
| Encrypted transmission using IPsec is disabled. |
FTP | TCP:21 |
| Functions that require FTP cannot be used. You can restrict personal information from being displayed by making settings on the control panel using "Restrict Display of User Information". |
telnet | TCP:23 |
| Commands using telnet are disabled. |
SMTP | TCP:25 (variable) |
| E-mail notification function that require SMTP reception cannot be used. |
HTTP | TCP:80 |
| Functions that require HTTP cannot be used. Cannot print using IPP on port 80. |
HTTPS | TCP:443 |
| Functions that require HTTPS cannot be used. You can also make settings to require SSL transmission using the control panel or Web Image Monitor. |
SMB | TCP:139 TCP:445 |
| SMB printing functions cannot be used. |
NBT | UDP:137 UDP:138 |
| SMB printing functions via TCP/IP, as well as NetBIOS designated functions on the WINS server cannot be used. |
SNMPv1,v2 | UDP:161 |
| Functions that require SNMPv1, v2 cannot be used. Using the control panel, Web Image Monitor or telnet, you can specify that SNMPv1, v2 settings are read-only, and cannot be edited. |
SNMPv3 | UDP:161 |
| Functions that require SNMPv3 cannot be used. You can also specify settings to require SNMPv3 encrypted transmission and restrict the use of other transmission methods using the control panel, Web Image Monitor, or telnet. |
RSH/RCP | TCP:514 |
| Functions that require RSH cannot be used. You can restrict personal information from being displayed by making settings on the control panel using "Restrict User Info.Display". |
LPR | TCP:515 |
| LPR functions cannot be used. You can restrict personal information from being displayed by making settings on the control panel using "Restrict User Info.Display". |
IPP | TCP:631 |
| IPP functions cannot be used. |
SSDP | UDP:1900 |
| Device discovery using UPnP from Windows cannot be used. |
Bonjour | UDP:5353 |
| Bonjour functions cannot be used. |
@Remote | TCP:7443 TCP:7444 |
| RICOH @Remote cannot be used. |
DIPRINT | TCP:9100 |
| DIPRINT functions cannot be used. |
RFU | TCP:10021 |
| You can update firmware via FTP. |
WSD (Device) | TCP:53000 (variable) * Enabling WSD (Device) and opening this port also enable WS-Discovery (TCP:3702) and WS-Discovery (UDP:3702). |
| WSD (Device) functions cannot be used. |
WSD (Printer) | TCP:53001 (variable) |
| WSD (Printer) functions cannot be used. |
RHPP | TCP:59100 |
| Cannot print with RHPP. |
LLMNR | UDP:5355 |
| Name resolution requests using LLMNR cannot be responded. |
“Restrict User Info.Display” is one of the Extended Security features. For details about making this setting, see Specifying the Extended Security Functions.