Multiple Bootp servers, Example of Bootp, 240 | Black Box 24 port

Multiple BOOTP servers

You may well wish to have a secondary BOOTP server as a back-up to the primary BOOTP server.

The unit will operate with BOOTP when you have a second, third or more BOOTP servers on your network. During a reboot the unit processes the first BOOTP reply received and ignores subsequent replies. If the bootptab file entries are identical on all your BOOTP servers the first reply received by the unit will be the same as the other replies.

The rules for multiple BOOTP servers are:

•we recommend they are located on the same network; however if they are on different network see the advice at How to setup BOOTP on page 231

•if you specify a bootfile (bf), each BOOTP server must contain an identical copy of this bootfile

•the software file (SW_FILE) and/or configuration file (CONFIG_FILE) can be located on any host; they do not have to be on the BOOTP server machines

Example of BOOTP

Here is a working example of BOOTP, used to download a new version of software. We are using tftp with the ‘secure’ option:

1.If possible choose a BOOTP server which is located on the same network as the unit. Our BOOTP server was located like this.

2.Enable BOOTP on the machine you have chosen as the BOOTP server. E.g. on our SCO Open Server 5 machine we modified file /etc/inetd.conf, as follows:

tftp dgram udp wait root /etc/tftpd tftpd -s /tftpboot

bootps dgram udp wait root /etc/bootpd bootpd -c/ tftpboot

3.Reboot the BOOTP server to ensure that BOOTP is operating.

4.Make an entry in file /etc/bootptab for your unit; e.g.

Black Box Console Server user guide

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Black Box 24 port, 16 port manual Multiple Bootp servers, Example of Bootp, 240

Contents

24 port Console Servers User Guide MAY LS50116 LS50116-AE LS50124 LS50124-AE Instrucciones DE Seguridad Black Box Console Server user guide Black Box Console Server user guide Purpose of this manual Who this manual is for Fast Contents Contents Introduction Installation Configuring Break Pass Through 110 115 144 Set ethernet interface AUI 204 236 Black Box Console Server user guide A p t e r 1 I n t r o d u c t i o n About the Console Server Black Box Console Server user guide Managing devices without accessing the LAN/WAN Management and diagnosticsTypical applications summary Managing devices over the LAN/WAN Console Server front and rear views Console Server front viewConsole Server rear panel Black Box Console Server user guide A p t e r 2 Installation General installation procedure Rack mounting your Console Server Console Server Black Box Console Server user guide Desk mounting your Console Server Multiple stacking your Console Server Power and network LEDs LED guide Console Server During normal operations Black Box Console Server user guide Selecting AUI or 10/100 Base T interface 10/100Base-T Setting up an IP address Setting up an IP address automatically using DhcpSet up procedure Black Box Console Server user guide About Dhcp Dhcp request and response Black Box Console Server user guide Black Box Console Server user guide Manually setting up an IP address Set up procedure Black Box Console Server user guide Tip Are valid, should not need recourse to a Radius host Server form field descriptions Parameter Description Dhcp Gui access Accessing the Console Server configuration software Logging onto your Console Server Setting up your network parameters Setting up the host tableAdding a Host Black Box Console Server user guide Changing a Host Deleting a host Changing the Admin Password Cli syntax set user passwordFactory default password is superuser Radius configuration Black Box Console Server user guide Accept the form you will be returned to the menu Radius parameters description Radius host Accounting flag State of Radius Result Specified 0a000006 DNS configuration Cli syntax add DNS Delete DNS Wins configuration Add Wins Configuring network gateways Active and passive gateways Adding a gateway From the Network Configuration menu, select ‘Gateway’ Deleting a GatewayDelete Gateway Verifying your network installation Ping hostname Saving configuration changes Saving to non-volatile memory Saving to a file Setting date and time Performing a soft reboot Restoring factory default settings Resetting to factory defaults using softwareResetting to factory defaults using reset switch Black Box Console Server user guide Black Box Console Server user guide A p t e r 3 S y s t e m a d m i n i s t r a t i o n Setting up the line on your Console Server Security Viewing and editing your line settings Lines set to reverse Telnet by defaultTypical Reverse Telnet Configuratio n Black Box Console Server user guide Lost password Configuring a dial in line Introduction to Slip and PPP connectionsDeciding whether to use Slip or PPP Setting up the line Show line Service option Option Description Service option Description Router use only Configuring Slip OptionDescription Interactive OptionDescription Configuring PPP PPP configuration procedureShow PPP Line Now select a line PPP form field descriptions Black Box Console Server user guide Black Box Console Server user guide Black Box Console Server user guide Be set ppp li 1 user kevinc8 Password IP address negotiation Black Box Console Server user guide Roaming Callback Black Box Console Server user guide Configuring a modem Cli syntaxAdd modem Set modem Configuring users Black Box Console Server user guide When Radius authenticates users About user accounts and RadiusOverview Black Box Console Server user guide Example Radius user file telnet service Adding a user account Configuring a user account Configuration procedureChoose your user from the list of names now displayed Values User form field descriptions 100 Particular line to ‘cslogin’ see Setting up the line on Particular port to ‘cslogin’ see Setting up the line on101 102 103 Callback for a user 104 105 106 About user levels CLI prompts107 Changing a user’s password Deleting a user account108 Configuring Break Pass Through 109 Resetting the line to default 110 Saving your settings Saving settings to non-volatile memorySaving settings to a file 111 112 113 114 A p t e r 4 U s i n g y o u r C o n s o l e S e r v e r 115 Introduction 116 Accessing devices via Telnet from the LAN Access procedureInformation required 117 Accessing devices via SSH SSH Setup Procedure118 119 Required Information 120 121 Accessing devices via modems using PPP 122 Accessing devices via modems using a dumb device 123 124 Server console server This appendix includes the following sections125 Pin locations RJ45 connectors RJ45 RS232 serial portsCircuit Direction Function 126 Pin numbering in the RJ45 connectors 127 Pin Signal AUI port128 Pin Signal Function RJ45 10/100BaseT port129 Admin Port 130 Direct 11 Connections Example direct connections131 Sun Microsystem servers 132 133 Cisco RJ45 console ports with software flow control Black Box 833ASBlack Box Series router console port 134 IBM RS6000 135 Connection from the 25-pin Admin Port to a PC PC serial portPC, example connections 136 137 Terminals slow speed or using software flow control Terminals138 Connection from the 25-pin Admin Port to a Terminal 139 Modems Direct connections140 P e n d i x B T h e C L I c o m m a n d s 141 CLI commands Add communityAdd DNS Inetaddress Menu Network Configuration DNS Add DNS Equivalent See also 143 Add gateway Add host144 145 Where Host type Add modemAdd radius 146 Add trap Add userAdd Wins 147 Admin DebugDelete ARP Delete community Delete DNS Delete gatewayDelete host 149 Menu Network Configuration Host Table Equivalent See also Delete modemDelete radius 150 Delete trap Delete userDelete Wins 151 Heap Syntax heap152 Help Kill lineLogout 153 Netload Where154 Software When you reboot the unit. See reboot on 155 Netsave 156 157 Ping Packetsize158 159 Reboot Reset factoryReset line 160 Reset user RestartResume Menu None available Equivalent See also 162 Rlogin Menu Sessions Start telnet/rlogin Equivalent See alsoSave Also use this argument to log in as someone else Screen Set contactSet date 164 Set ethernet interface RJ45 Set ethernet interface AUISet gateway Syntax Set host Set lineNormal 166 Line service can be used to dedicate the line to a specific Enter their login name just their passwordNouser 167 168 Set location RoutingSet to None off, send, listen or send & listen 169 Set ppp line Parameter syntax Parameter name170 171 Set radius 172 Unit afterwards use the command ‘reboot’ Set serverSubnet 173 174 Programme is controlled by password Or OFF. The default is OFFGui-status JETset Login prompt uses OEM1 string 176 Send Break Option 177 178 Menu equivalents See also BreakSshbreakstring 179 Set slip line 180 Syntax Command telnet Set telnet181 Set time Set userFor example set time 182 183 184 User levels admin, normal Syntax Menu equivalent See also Show ARPShow date 185 Admin, is normal Syntax Show gatewaysShow hardware Menu Main Menu Hardware Equivalent See also Show hosts Show interfacesNormal Syntax 187 Show line 188 189 190 Admin Normal Syntax Show modemsThis will show for example 191 Show ppp line Normal line192 193 Show radius Show routesMenu There is no menu equivalent Equivalent 194 195 Menu Server configuration Equivalent See also Show server196 Show slip line 197 Menu Network configuration snmp Equivalent See also Show snmp198 User levels admin, normal Show telnetShow time 199 Syntax Target login directory, you will be logged straight Where n is the predefined session that you want to startShow user Start Telnet Menu Sessions Start Predefined Session Equivalent See alsoSet telnet or show telnet can be saved permanently Inetaddress Termtype Version Normal Syntax version202 P e n d i x C S N M P 203 Overview 204 Configuring Snmp support AddCommunity Delete Community 206 Summary of objects in the private MIB 207 208 Private MIB definitions 209 210 211 212 Network management Editing RFC1213213 Editing Routing information214 P e n d i x D U p g r a d i n g y o u r f i r m w a r e 215 Using a Bootp server see Using Bootp from a boothost on 216 Saving your existing Configuration Example of saving a configuration fileUsing Tftp from a host Cli syntax netload software Tftp configuration 218 Writing to Flash memory 219 Using Bootp from a boothost 220 Upgrade using JETset, the web browser interface Enabling BOOTP/DHCP after upgrading softwareDisable BOOTP/DHCP 221 222 223 List of line service types Line Service Description/UsesExample Type Silent225 226 P e n d i x F B O O T P 227 228 How Bootp works Bootp request and response229 230 How to setup Bootp Bootptab file entryBootptab file entry for a single unit 231 232 233 Bootfile Bootfile234 Parameter Value Brief Meaning Fuller explanation 235 Bootp messages output to screen Disabling the Bootp reply236 # ht=1\ # ha=0080ba000057\ # gw=192.101.35.254\ 237 Booting multiple units Bootptab file entry for multiple units238 239 Multiple Bootp servers Example of Bootp240 Bootptab file 241 242 You need to Server JETset utility243 Introduction to JETset JETsethome244 To access JETset 245 Using JETset Using JETsetNetscape Navigator configuratio n 246 Internet Explorer configuratio n 247 248 JETset program summary 249 250 P e n d i x H Troubleshooting 251 General communication matters 252 Host problems 253 JETset problems 254 Login problems 255 You have lost or dont know your password as ‘admin’ user 256 Problems with terminals 257 Emergency recovery Problems with framed Routing258 Index 259 260 261 262 Copyright 2001. Black Box Corporation. All rights reserved