Filter
Top Products
XEROX WorkCentre
3550
Information Assurance Disclosure Paper
16
Ver. 1.3, March 2011 Page 16 of 32
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.
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/TCP Kerberos
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
TCP/UDP SLP
443
TCP SSL
515
TCP LPR
546
UDP DHCPv6
631
TCP IPP
636
TCP sLDAP
1124
TCP/UDP Network Scan Utility
1900
UDP SSDP
3003
TCP HTTP/SNMP reply
5200
TCP UPnP
5353
UDP Multicast DNS
6000
UDP SetIP Utility
7000
UDP LTP Utility
9100
TCP Raw IP
9400
TCP TWAIN for Network Utility
9401
TCP TWAIN for Network Utility
Table 76 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.
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.
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 Local UI or
WebUI.