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67091b1b MS |
1 | <!DOCTYPE html> |
2 | <html> | |
3 | <!-- SECTION: Getting Started --> | |
4 | <head> | |
5 | <title>Firewalls</title> | |
6 | <link rel="stylesheet" type="text/css" href="../cups-printable.css"> | |
7 | </head> | |
8 | <body> | |
9 | <h1 class="title">Firewalls</h1> | |
10 | ||
11 | <p>This help document describes the ports that CUPS uses so that firewall administrators can allow traffic used for printing.</p> | |
12 | ||
cfd375ad | 13 | <h2 class="title" id="SHARING">Ports Used for Printer Sharing</h2> |
67091b1b | 14 | |
3f76968f | 15 | <p>Table 1 lists the ports that are used for IPP printer sharing via CUPS.</p> |
67091b1b | 16 | |
3f76968f MS |
17 | <div class="table"><table summary="Ports Used for IPP Printer Sharing"> |
18 | <caption>Table 1: Ports Used for IPP Printer Sharing</caption> | |
67091b1b | 19 | <thead> |
3f76968f | 20 | <tr><th>(Destination) Port</th><th>TCP/UDP</th><th>Direction</th><th>Description</th></tr> |
67091b1b MS |
21 | </thead> |
22 | <tbody> | |
3f76968f MS |
23 | <tr><td>53 (DNS)</td><td>TCP/UDP</td><td>OUT</td><td>Domain Name System lookups and service registrations.</td></tr> |
24 | <tr><td>631 (IPP/IPPS)</td><td>TCP</td><td>IN</td><td>Internet Printing Protocol requests and responses (print jobs, status monitoring, etc.)</td></tr> | |
25 | <tr><td>5353 (mDNS)</td><td>UDP</td><td>IN+OUT</td><td>Multicast DNS lookups and service registrations.</td></tr> | |
26 | </tbody> | |
27 | </table></div> | |
28 | ||
29 | <p>Table 2 lists the ports that are used for SMB (Windows) printer sharing, typically via the Samba software.</p> | |
30 | ||
31 | <div class="table"><table summary="Ports Used for SMB Printer Sharing"> | |
32 | <caption>Table 2: Ports Used for SMB Printer Sharing</caption> | |
33 | <thead> | |
34 | <tr><th>(Destination) Port(s)</th><th>TCP/UDP</th><th>Direction</th><th>Description</th></tr> | |
35 | </thead> | |
36 | <tbody> | |
37 | <tr><td>137 (WINS)</td><td>UDP</td><td>IN+OUT</td><td>Windows Internet Naming Service (name lookup for SMB printing).</td></tr> | |
38 | <tr><td>139 (SMB)</td><td>TCP</td><td>IN</td><td>Windows SMB printing.</td></tr> | |
39 | <tr><td>445 (SMBDS)</td><td>TCP</td><td>IN+OUT</td><td>Windows SMB Domain Server (authenticated SMB printing).</td></tr> | |
67091b1b MS |
40 | </tbody> |
41 | </table></div> | |
42 | ||
43 | ||
cfd375ad | 44 | <h2 class="title" id="PRINTERS">Ports Used for Network Printers</h2> |
67091b1b | 45 | |
77401306 | 46 | <p>Table 3 lists the ports for outgoing network traffic that are used for network printers.</p> |
3f76968f MS |
47 | |
48 | <blockquote><b>Notes:</b> | |
49 | <ol> | |
50 | <li>DNS and mDNS are used for all printing protocols except SMB.</li> | |
51 | <li>SNMP is used to provide status and supply level information for AppSocket and LPD printers.</li> | |
52 | </ol> | |
53 | </blockquote> | |
67091b1b | 54 | |
3f76968f MS |
55 | <div class="table"><table summary="Outgoing Ports Used for Network Printers"> |
56 | <caption>Table 3: Outgoing Ports Used for Network Printers</caption> | |
67091b1b | 57 | <thead> |
3f76968f | 58 | <tr><th>(Destination) Port(s)</th><th>TCP/UDP</th><th>Description</th></tr> |
67091b1b MS |
59 | </thead> |
60 | <tbody> | |
61 | <tr><td>53 (DNS)</td><td>TCP/UDP</td><td>Domain Name System lookups.</td></tr> | |
62 | <tr><td>137 (WINS)</td><td>UDP</td><td>Windows Internet Naming Service (name lookup for SMB printing).</td></tr> | |
63 | <tr><td>139 (SMB)</td><td>TCP</td><td>Windows SMB printing.</td></tr> | |
64 | <tr><td>161 (SNMP)</td><td>UDP</td><td>SNMP browsing (broadcast) and status monitoring (directed to printer IP address).</td></tr> | |
65 | <tr><td>443 (IPPS)</td><td>TCP</td><td>Internet Printing Protocol requests and responses (print jobs, status monitoring, etc.)</td></tr> | |
66 | <tr><td>445 (SMBDS)</td><td>TCP</td><td>Windows SMB Domain Server (authenticated SMB printing).</td></tr> | |
67 | <tr><td>515 (LPD)</td><td>TCP</td><td>Line Printer Daemon (LPD/lpr) print job submission and status monitoring.</td></tr> | |
68 | <tr><td>631 (IPP/IPPS)</td><td>TCP</td><td>Internet Printing Protocol requests and responses (print jobs, status monitoring, etc.)</td></tr> | |
69 | <tr><td>5353 (mDNS)</td><td>UDP</td><td>Multicast DNS lookups.</td></tr> | |
70 | <tr><td>9100-9102</td><td>TCP</td><td>Raw print data stream (AppSocket/JetDirect).</td></tr> | |
71 | </tbody> | |
72 | </table></div> | |
73 | </body> | |
74 | </html> |