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TCP/IP : Introduction

Introduction

This chapter details the configuration of a GCC Printer for printing over Ethernet running
the TCP/IP network protocol. All of the software required for printing over TCP/IP to the
printer is contained in the printer; additional (optional) TCP/IP software is included on
the CD-ROM that came with your printer.

You must have

16 MB of RAM installed in the printer to use TCP/IP.

Software overview

The TCP/IP software includes:

TCP/IP protocol stack:

This is the primary TCP/IP software. It is contained within the

printer.

Internal lpd

- The printer contains an implementation of lpd, the Berkeley UNIX spooler.

Lpds on other machines can forward print jobs to the lpd in the printer, with no additional
software. For most sites, this is the preferred way to use the printer. UNIX System V Re-
lease 4 has a different spooler, but it can be configured to communicate with any Berkeley
spooler, including the one in the GCC printer.

telnet server

- The printer contains a telnet (remote login) server which allows you to

communicate with the printer via a telnet client running on your computer. This provides
direct interaction with the printer’s PostScript interpreter. Most computers running TCP/
IP have telnet clients available.

The following TCP/IP filters are contained on the printer CD-ROM in a folder named
UNIX.

Note: Three of the filters, tcpif, tcpof, and unix_pcl, are provided as C source. A third filter,
texttcpif, is provided as a Bourne shell script. Use of these filters is optional.

tcpif

- tcpif is an lpd input filter that runs on UNIX machines. It bypasses the printer’s

internal spooler and sends the final print data to the printer through a direct TCP connec-
tion. This makes it possible for a UNIX lpd to process print data with optional filter and
formatting programs; the printer’s internal lpd does not support filters. The tcpif filter is
compatible only with the Berkeley UNIX printing system - lpr and lpd.

unix_pcl

and

texttcpif

- These UNIX filters allow UNIX text files to be printed properly

by the Printer’s PCL interpreter.

tcpof

- Lets you add header pages at the beginning of print jobs.

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Содержание Elite 12N

Страница 1: ...one person wants to print at the same time 3 What about security 3 Which kind of network layout bus or star 4 How will I know if I have enough printers for everyone 4 NEST Introduction 5 Setting up y...

Страница 2: ...onfiguration dialog box 18 Displaying an item and its description 18 Editing an item 18 Restoring the default values of an item subject or device 18 Changing the password for a device 19 Completing yo...

Страница 3: ...Restriction 30 WebAdmin Index 31 WebAdmin Messages 31 Setting up TCP IP Protocol 33 Troubleshooting Tips 34 TCP IP Introduction 35 Software overview 35 Installing the optional filters 36 Setting up th...

Страница 4: ...spooler 43 Editing the printcap files 43 Printing text files with texttcpif 44 Using tcpof 45 Using telnet with the printer 45 Appendix A TCP IP overview 46 Appendix B TCP IP addressing 47 IP address...

Страница 5: ...port 54 Option 2 BNC to BNC connection 55 To connect the printer to a computer with a BNC connector 55 Configuring the printer for network operation 56 Configuring EtherTalk software on your computer...

Страница 6: ...ousands of users and many features are provided that aren t needed at smaller sites This section deals mainly with peer to peer networks as these are easier to set up and administer Depending on the a...

Страница 7: ...ion You can mix AppleTalk and EtherTalk computers on the same network AppleTalk s disadvantage is that it is considerably slower than Ethernet You could find that users on an AppleTalk network become...

Страница 8: ...ore than lock the door to prevent access to it Most systems allow you to specify which folders or directories can be shared with other users and let you name the users and specify that they have the c...

Страница 9: ...only one computer is affected The cabling used is called Unshielded Twisted Pair UTP and this method is called 10BASE T For a simple network either method will be satisfactory In some cases if your co...

Страница 10: ...ated later in this section and in Section 2 of this manual If you do not have TCP IP on your network you will be unable to use WebAdmin In that case you will need to use GCC s NEST Config Tool which i...

Страница 11: ...is located in SYS PUBLIC First you create a print queue 3 From the menu shown in figure 1 choose Print Queue Information 4 Press Ins to add a new item to the list of queues 5 Type the name of the new...

Страница 12: ...hen you assign users to this server 4 With your new server selected press Enter again 5 Choose Print Server Users from the Print Server Information menu and press Enter 6 Modify the list of users as n...

Страница 13: ...his option from the list Finally you assign your queue to your printer 16 When you have defined your printer press Esc to return to the Print Server Configuration menu 17 Choose Queues Serviced by Pri...

Страница 14: ...SOR or equivalent 2 Start the PCONSOLE program it is located in SYS PUBLIC 3 Change to the correct context and make a note of it You will need this when you use GCC s WebAdmin utility discussed in a l...

Страница 15: ...10 Figure 3 Choosing Quick Setup from PCONSOLE s opening screen Figure 4 PCONSOLE s Quick Setup screen...

Страница 16: ...r equivalent 2 Start the NWADMIN program it is located in SYS PUBLIC 3 Change the context if necessary to the same as the printer Choose Change Context and press Insert to browse the list of available...

Страница 17: ...new password and press Enter then type the password again to verify it 13 Make a note of the user name and password you will need them for the GCC WebAdmin setup 14 Click on the OK button to exit thi...

Страница 18: ...he login name and press the down arrow key 8 Type the last name and press Esc Now you change properties or set a password if necessary 9 If you do not want to change properties or passwords go to step...

Страница 19: ...dmin First ensure that NEST is enabled on the printer 1 Launch your World Wide Web browser and attached to your printer as explained in Section 2 2 Select click NETWORKS from the WebAdmin main menu Th...

Страница 20: ...save your changes and reboot NetWare 4 x setup with WebAdmin If you are installing under NetWare 4 x you will need to configure the following items 1 From the WebAdmin Networks menu select the Networ...

Страница 21: ...o set up NEST GCC s NEST Config Tool allows you to configure NEST devices on your network if you do not have TCP IP When you start the Config tool it polls the network and returns a list of NEST enabl...

Страница 22: ...list These lists default to an asterisk to show that all items are selected for that parameter The drop down lists display all unique values for the parameter Alternatively you can enter a parameter v...

Страница 23: ...ppears see figure 9 Understanding the Device Configuration dialog box This dialog box uses Subjects and Items For each NEST device various properties or items can be configured Related items are group...

Страница 24: ...cter to the end of the job and in some cases to the beginning as well The following sections tell you how to configure computers running Windows 3 1 or Windows 95 to prevent them from sending the extr...

Страница 25: ...ter Config Page NEST info You can find information about the current status of your printer by printing a configuration page unless the printer is in PCL only mode 1 Make sure the printer s display sh...

Страница 26: ...IN to make sure that you have created a user Use the Config tool to make sure that the printer has the correct name and password Also make sure that user is in the same context as the print server and...

Страница 27: ...T printer I changed the frametype and now my printer won t connect to the file server When you change the frametype you are also changing the network number of the printer Since the internal print ser...

Страница 28: ...orm a variety of configuration tasks and for those who are already using their printers on an Ethernet network WebAdmin does not send print jobs to the printer Getting Started 1 Install a Web browser...

Страница 29: ...ere myGCC is the name of the printer In most cases your system administrator will assign a hostname to your printer This name may differ from the AppleTalk name of the printer that appears on the prin...

Страница 30: ...ormation text link at the bottom of the home page If your computer has Internet access clicking the GCC logo top left corner of the WebAdmin title bar links you to the GCC Technologies Web home page h...

Страница 31: ...me can change frequently as multiple users send print jobs to the printer For example if a user sends a print job that uses up all the paper while you have this page loaded the frame will not reflect...

Страница 32: ...st the printer is automatically taken off line the changes are initiated and the printer is automatically brought online This process assures that your changes do not conflict with changes being enter...

Страница 33: ...n to the WebAdmin password you may want to restrict which TCP IP addresses can connect to the printer These restrictions apply to all methods of connecting via TCP IP including WebAdmin telnet and pin...

Страница 34: ...equently loaded WebAdmin pages will now include a Password entry box Each time you make a change to a page you need to enter the password in the Password entry box prior to clicking the Submit new set...

Страница 35: ...Settings page appears 3 In the Restrict TCP IP communications pop up menu select Enabled 4 Enter mask IP address pairs in the appropriate boxes The restrictions are defined as pairs of masks and addre...

Страница 36: ...Admin page Note that some items specify the range of valid settings To access the Index page click the Index page bar in the Navigation frame or click the Index menu item at the bottom of any WebAdmin...

Страница 37: ...ect If you entered a blank password the password requirement is disabled You must type the password the same way twice When changing a password you are required to type the new password twice in the s...

Страница 38: ...ifically needs a Winsock compliant TCP IP protocol stack such as the shareware Trumpet Winsock MacTCP is included with System 7 5 on the Macintosh Some newer Macintoshes use the OpenTransport TCP IP s...

Страница 39: ...ct to the WebAdmin home page Reboot the printer after configuring it for TCP IP Reboot the computer after configuring it for TCP IP Give the printer the same address class A B or C as your Macintosh u...

Страница 40: ...rver The printer contains a telnet remote login server which allows you to communicate with the printer via a telnet client running on your computer This provides direct interaction with the printer s...

Страница 41: ...n compiling and installing the filters Setting up the printer on a TCP IP network Follow these steps to set up the printer on the network Decide where the printer will be physically located on the net...

Страница 42: ...cast address Leave the default setting unchanged unless you wish to use a different Broadcast address Enter the IP address for a default router if one is used Enter the IP address of a computer runnin...

Страница 43: ...e key removes the rightmost 1 In other words the key turns the leftmost 0 bit to a 1 and the key turns the rightmost 1 bit to a 0 IP Address The printer s IP address is displayed in dotted decimal not...

Страница 44: ...ou ll need to change this to Auto Switch to allow TCP IP printing of PostScript and PCL jobs Important If the Printer has less than 16 MB of RAM installed you will encounter frequent complexity errors...

Страница 45: ...cintoshes and PC compatibles running DOS or Windows 3 1 and 95 can also be configured using 3rd party software to send print jobs to the Printer s internal spooler and Windows NT has this capability b...

Страница 46: ...ory is used to temporarily hold print jobs until they are sent to the printer Typically this directory will be named usr spool printername or var spool lpd printername This directory should be owned b...

Страница 47: ...about using a hard disk with the Printer Note Although the Printer supports multiple hard disks for font storage the printer s lpd will not function correctly in this configuration We recommend using...

Страница 48: ...l use the printer Edit the printcap files Add the printer s hostname and attributes to the etc printcap file on the master spooler Add the name of the master spooler to the etc printcap file on each c...

Страница 49: ...you have created the necessary spool directories and added the printer to the printcap files you are ready to print with the lpr command Printing text files with texttcpif If you are sending UNIX tex...

Страница 50: ...s you to append a cover page to the front of pcl print jobs In the example below the previous printcap entry has been edited to include processing by the tcpof filter honolulu_text lp dev null if usr...

Страница 51: ...IP are derived from Berkeley s However TCP IP software is available on a wide variety of computers and operating systems including Apple Macintoshes PC compatibles most UNIX workstations Digital Equip...

Страница 52: ...essages RIP Routing Information Protocol is one of several protocols used by routers to ex change information about routes It runs over UDP Applications are programs that want to talk to each other ac...

Страница 53: ...etwork num ber and host number There are some restrictions on the values of these numbers Neither the network number nor the host number can be designated as zero or all ones Zero is reserved all ones...

Страница 54: ...Each of the three fields of an IP broadcast address can contain the broadcast value all ones separately An IP broadcast address takes one of these forms ones ones ones the entire physical net net sub...

Страница 55: ...w all those on your subnet to connect but to block out everyone else on the Internet You can restrict IP addresses by entering pairs of IP addresses and masks For each range of addresses you want to a...

Страница 56: ...dly press the Menu button until you get to IP Restrictions and press Enter 5 The Control panel should say Restrict IP Disabled Press the key to change this to Enabled and press Enter 6 Enter the first...

Страница 57: ...E T Unshielded Twisted Pair or UTP network connection You connect your printer to 10BASE T Ethernet using the 10BASE T RJ 45 connector on the rear of the printer The cabling used is Unshielded Twisted...

Страница 58: ...ds of the T connectors Unless you have a PC compatible running EtherTalk compatible software the remainder of this section refers to Macintoshes Place a 50 Ohm terminator here if the printer is the la...

Страница 59: ...e proceeding with the following procedures Option 1 Apple Attachment Unit Interface AAUI The AAUI interface is the standard connector used by Apple in Macintoshes that have Ethernet built in at the fa...

Страница 60: ...d installed in the computer Macintosh or PC compatibles Items needed Computer with EtherTalk and BNC connector 2 BNC T connectors 2 50 Ohm terminators 1 length at least 6 feet long of RG 58 coaxial ca...

Страница 61: ...up on a network you should configure the printer to accept print jobs through the EtherTalk port The printer receives print data through the EtherTalk port which is physically connected to the Ethern...

Страница 62: ...w press the Enter key to save the setting An asterisk will appear in the window which confirms your selection 3 Set the EtherTalk Port submenu Do not leave the PS PCL Sensing submenu press the Menu ke...

Страница 63: ...the EtherTalk Phase 2 icon two arrows pointing in each direc tion or two arrowheads connected by a dotted line as opposed to EtherTalk Phase 1 one arrow pointing in each direction 4 Close the network...

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