Xerox 5735 Manuale Utente
XEROX WorkCentre
5735/5740/5745/5755/5765/5775/5790
Information Assurance Disclosure Paper
Ver. 2.00, March 2011
Page 17 of 50
device-initiated operations (like scanning) cannot assume the existence of the tunnel unless a print job (or other
client initiated action) has been previously run since the last boot at either end of the connection.
client initiated action) has been previously run since the last boot at either end of the connection.
2.8.2. Ports
The following table summarizes all potential open ports and subsequent sections discuss each port in more detail.
Default
Port #
Type
Service name
25
TCP
SMTP
53
UDP
DNS
68
UDP
BOOTP/DHCP
80
TCP
HTTP
88
UDP
Kerberos
110
TCP
POP-3 client
137
UDP
NETBIOS- Name Service
138
UDP
NETBIOS-Datagram Service; SMB filing and Scan template retrieval
139
TCP
NETBIOS; SMB filing and Scan template retrieval
161
UDP
SNMP
162
UDP
SNMP trap
389
UDP
LDAP
396
TCP
Netware
427
UDP
SLP
443
TCP
SSL
515
TCP
LPR
631
TCP
IPP
1900
UDP
SSDP
3003
TCP
http/SNMP reply
9100
TCP
raw IP
Table 9 Network Ports
Please note that there is no ftp port in this list. ftp is only used to export scanned images and to retrieve Scan Job
Templates, and will open port 21 on the remote device. An ftp port is never open on the controller itself.
Templates, and will open port 21 on the remote device. An ftp port is never open on the controller itself.
2.8.2.1.
Port 25, SMTP
This unidirectional port is open only when Scan to E-mail or Internet Fax (I-Fax) is exporting images to an SMTP
server, or when email alerts are being transmitted. SMTP messages & images are transmitted to the SMTP server
from the device.
server, or when email alerts are being transmitted. SMTP messages & images are transmitted to the SMTP server
from the device.
2.8.2.2.
Port 53, DNS
Designating a DNS server will allow the device to resolve domain names. This can be configured via the LocalUI or
WebUI.
WebUI.
2.8.2.3.
Port 68, DHCP
This port is used only when performing DHCP, and is not open all of the time. To permanently close this port, DHCP
must be explicitly disabled. This is done in User Tools via the Local User Interface or via the TCP/IP page in the
Properties tab on the WebUI.
must be explicitly disabled. This is done in User Tools via the Local User Interface or via the TCP/IP page in the
Properties tab on the WebUI.