Lantronix Hub manual Protocols

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MSS User Guide

1: Introduction to the MSS Family

‹Remote Configuration

The MSS can be logged into and remotely configured via a network login, a Telnet login to the remote console port, EZWebCon, or a web browser connection to the MSS’ internal HTTP server.

‹Context-Sensitive Help

Context-sensitive online help is available from the CLI at any time. You may type HELP by itself for overall help, HELP <command> for help on a specific command, or a partial command line followed by a question mark for help on what is appropriate at that particular point.

Note: See the MSS Reference Manual for more information.

‹Reloadable Operating Software

The MSS stores its operating code in Flash ROM, which means that it does not have to download code at boot time. If necessary, you can upgrade the MSS operating code to support additional features as newer code becomes available. Also, you can configure the MSS to request a downloaded configuration file at boot time.

‹Security

The MSS includes several configurable security features:

Automatic session logouts when a port is disconnected or a device is turned off.

Password protection for privileges, ports, maintenance commands, and the remote console.

An IP security table, which allows the system administrator manager to restrict incoming and outgoing TCP/IP connections to certain ports and hosts. This allows managers to restrict MSS access to a particular local network segment or host.

‹Diagnostics

Power-up and interactive diagnostics help system managers troubleshoot network and serial line problems.

‹SDK Support

The MSS supports the Lantronix Software Developer Kit (SDK), which allows users to customize the MSS and add functionality.

Note: The SDK does not allow users to configure custom PC card support.

Protocols

A network protocol is a method of communicating over Ethernet (wired or wireless). Each protocol specifies a certain arrangement of data in the Ethernet packets and provides different services for its users.

The MSS supports TCP/IP protocols, including Telnet, Rlogin, UDP, DNS, and WINS.

‹The Telnet terminal protocol, supported on most UNIX systems, is an easy-to- use interface that creates terminal connections to any network host supporting Telnet.

‹Rlogin is a protocol that allows users to initiate a TCP/IP login session.

‹UDP (User Datagram Protocol) is a connectionless protocol that results in smaller packet headers, no session overhead, and the ability to send to multiple hosts.

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Contents MSS User Guide Lantronix Corporate Headquarters Technical SupportSales Offices Disclaimer & Revisions Contents Configuration Using the MSS Compliance and Warranty Information Introduction to the MSS Family MSS Family FeaturesProtocols About The Documentation TermsMSS User Guide Introduction to the MSS Family Installation MSS-VIA InstallationComponents MSS-VIA LEDs MSS-VIA Rear PanelExample Wired Network Layout Installation ProcedureMSS User Guide Installation Pinging the MSS Power power cube adaptor MSS-VIA SpecificationsTemperature HumidityMSS4 Components MSS4 InstallationMSS Connected to a Serial Device and Network MSS4 LEDsMSS User Guide Installation MSS4 Specifications 10 MSS100 Front Panel MSS100 Installation12 MSS Network Layout MSS100 LEDs13 MSS Connected to Serial Device and Ethernet 14 Pinging the MSS MSS100 SpecificationsPrivileged User Status Getting StartedUsing EZWebCon IP Address ConfigurationUsing a Web Browser From the Action menu, select Assign IP AddressEntering ARP and Ping Unix Using ARP and PingUsing the Serial Console Using a DHCP, BOOTP, or Rarp ReplyLogin Password Incoming LoginsIncoming TCP/IP Logins Web Browser Login and ConfigurationEZWebCon Login and Configuration Serial Port LoginsRlogin TelnetChanging the Login Password Remote Console LoginsIncoming LAT Logins Logout Outbound ConnectionsRebooting the MSS ConfigurationNormal Reboot OverviewProtocol Configuration Factory DefaultsTCP/IP Configuration Name Server Specifying a Gateway for MSS-VIA and MSS4Supported Mibs IP SecurityConfiguring Snmp IPX NetWare ConfigurationSnmp Trap Support Routing and EncapsulationLoadhost Internal Network NumberService Groups LAT ConfigurationCircuit Timer Server IdentificationTwo-Wire Mode RS-485 Configuration22 Enabling Two-Wire RS-485 Mode for MSS4 Four-Wire ModeTermination TXDriveSerial Port Configuration Access ModeAutostart Serial Data 36 Configuring an Autostart Character for MSS-VIA and MSS4Character Size, Parity, and Stop Bits Baud RateFlow Control Modems and Modem SignalingSignal Checking Modem ControlDSRLogout DTRWait LogoutsConfiguration Preferred HostDedicated Host Region Enabling 802.11 NetworkingMAC Address Extended Service Set ID EssidNetwork Mode Setting the WEP Key and Index NumberChannel Formatting an ATA Flash Card Modem CardsEncrypted Traffic Outgoing Calls Incoming CallsUsing the MSS Incoming ConnectionsSocket Connections Interactive Connections Outbound ConnectionsTCP/IP Socket Connections Break Key and Local Switch Backward, Forward, and SwitchesSession Control Disconnect and Resume Status DisplaysSession Limits ShowSerial Tunnel UDP Configuration TCP ConfigurationEnabling Multihost Mode Multihost ModeModem Emulation Mode Adding HostsRemoving Hosts 17. Enabling Modem Mode for MSS100 Modem Mode CommandsSequential Hostlist Mode Wiring RequirementsCOM Port Redirector Troubleshooting Power-up TroubleshootingPower-up Problems and Error Messages Bootp Troubleshooting Dhcp TroubleshootingDhcp Troubleshooting Bootp TroubleshootingTftp Troubleshooting Rarp TroubleshootingModem Configuration Checklist Rarp TroubleshootingEntering Commands at the Boot Prompt Change Bootp Enabled, DisabledInit Change Hardware Change Dhcp Enabled, DisabledChange Ipaddress ipaddress Change Loadhost ipaddressTechnical Support Europe, Middle East, and Africa Technical SupportMSS VIA Connectors Ethernet ConnectorSerial Connectors PinoutsMSS4 Connectors RS-232 DB9 ConnectorRS-485 DB9 Connectors MSS100 Connectors DB25 ConnectorRS-232 DB9 Connectors Modem Wiring DSR Data Signal Ready versus CD Carrier DetectDTR Data Terminal Ready Obtaining Software Updating SoftwareReloading Software Via the Web Via FTPFTP Troubleshooting Flash ROM Updates Flash ROM TroubleshootingNetWare MSS User Guide Updating Software Compliance Information Compliance and Warranty InformationWarranty