Lantronix Hub manual Enabling Multihost Mode

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MSS User Guide

5: Using the MSS

Setting up dedicated hosts ensures that the units will always talk to each other. Enabling Autostart for both units enables one MSS to send data to the other MSS without having to wait for a serial carriage return to start the session.. The second MSS knows exactly which other MSS to accept connections from. Finally, when Autostart is enabled, the access mode must be either Local or Dynamic (Dynamic is more flexible).

Multihost Mode

Multihost mode is used to set up a data pipe between a serial device attached to the MSS and multiple hosts on the network. Data from any network host goes out of the MSS serial port, and data from the serial port is sent to all connected network hosts. The MSS does not alter the data in any way; it only forwards it between the serial port and the hosts.

There are a few important things to note about multihost connections:

‹The MSS attempts to send data in the order it is received. That is, it reads in and sends data from one host before reading in data from another host.

‹The MSS will ping TCP and UDP hosts before sending packets to make sure the remote hosts are active. If they are active, the MSS makes the real connection and passes the data. If not, the MSS will retry later. Similarly, if one of the host connections is terminated prematurely, the MSS will attempt to reconnect at preset intervals.

‹If a host's flow control or other settings block the MSS from sending, the MSS will skip it and send the data to the other hosts. However, the MSS does not keep a list of which hosts were skipped in the past—it consults all hosts each time it has data to send.

‹When the MSS serial port is logged out, all host sessions are disconnected, leaving the port idle.

Enabling Multihost Mode

To configure the MSS for a dedicated multihost connection, use the Change Port Dedicated command.

Figure 5-11: Enabling Multihost Mode for MSS-VIA and MSS4

Local>> CHANGE PORT 1 DEDICATED HOSTLIST

Figure 5-12: Enabling Multihost Mode for MSS100

Local>> CHANGE DEDICATED HOSTLIST

When a dedicated connection is enabled, local mode hotkeys for session manipulation are disabled.

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Contents MSS User Guide Sales Offices Lantronix Corporate HeadquartersTechnical Support Disclaimer & Revisions Contents Configuration Using the MSS Compliance and Warranty Information MSS Family Features Introduction to the MSS FamilyProtocols Terms About The DocumentationMSS User Guide Introduction to the MSS Family Components InstallationMSS-VIA Installation MSS-VIA Rear Panel MSS-VIA LEDsInstallation Procedure Example Wired Network LayoutMSS User Guide Installation Pinging the MSS Temperature MSS-VIA SpecificationsPower power cube adaptor HumidityMSS4 Installation MSS4 ComponentsMSS4 LEDs MSS Connected to a Serial Device and NetworkMSS User Guide Installation MSS4 Specifications MSS100 Installation 10 MSS100 Front PanelMSS100 LEDs 12 MSS Network Layout13 MSS Connected to Serial Device and Ethernet MSS100 Specifications 14 Pinging the MSSGetting Started Privileged User StatusUsing a Web Browser IP Address ConfigurationUsing EZWebCon From the Action menu, select Assign IP AddressUsing ARP and Ping Entering ARP and Ping UnixUsing a DHCP, BOOTP, or Rarp Reply Using the Serial ConsoleIncoming TCP/IP Logins Incoming LoginsLogin Password Web Browser Login and ConfigurationRlogin Serial Port LoginsEZWebCon Login and Configuration TelnetIncoming LAT Logins Changing the Login PasswordRemote Console Logins Outbound Connections LogoutNormal Reboot ConfigurationRebooting the MSS OverviewTCP/IP Configuration Protocol ConfigurationFactory Defaults Specifying a Gateway for MSS-VIA and MSS4 Name ServerIP Security Supported MibsSnmp Trap Support IPX NetWare ConfigurationConfiguring Snmp Routing and EncapsulationInternal Network Number LoadhostCircuit Timer LAT ConfigurationService Groups Server IdentificationRS-485 Configuration Two-Wire ModeFour-Wire Mode 22 Enabling Two-Wire RS-485 Mode for MSS4TXDrive TerminationAutostart Serial Port ConfigurationAccess Mode 36 Configuring an Autostart Character for MSS-VIA and MSS4 Serial DataBaud Rate Character Size, Parity, and Stop BitsModems and Modem Signaling Flow ControlDSRLogout Signal CheckingModem Control Logouts DTRWaitDedicated Host ConfigurationPreferred Host Enabling 802.11 Networking RegionExtended Service Set ID Essid MAC AddressChannel Network ModeSetting the WEP Key and Index Number Encrypted Traffic Formatting an ATA Flash CardModem Cards Incoming Calls Outgoing CallsSocket Connections Using the MSSIncoming Connections TCP/IP Socket Connections Interactive ConnectionsOutbound Connections Session Control Break Key and Local SwitchBackward, Forward, and Switches Session Limits Status DisplaysDisconnect and Resume ShowSerial Tunnel TCP Configuration UDP ConfigurationMultihost Mode Enabling Multihost ModeRemoving Hosts Modem Emulation ModeAdding Hosts Modem Mode Commands 17. Enabling Modem Mode for MSS100COM Port Redirector Sequential Hostlist ModeWiring Requirements Power-up Problems and Error Messages TroubleshootingPower-up Troubleshooting Dhcp Troubleshooting Dhcp TroubleshootingBootp Troubleshooting Bootp TroubleshootingModem Configuration Checklist Rarp TroubleshootingTftp Troubleshooting Rarp TroubleshootingInit Entering Commands at the Boot PromptChange Bootp Enabled, Disabled Change Ipaddress ipaddress Change Dhcp Enabled, DisabledChange Hardware Change Loadhost ipaddressTechnical Support Technical Support Europe, Middle East, and AfricaSerial Connectors Ethernet ConnectorMSS VIA Connectors PinoutsRS-485 DB9 Connectors MSS4 ConnectorsRS-232 DB9 Connector RS-232 DB9 Connectors MSS100 ConnectorsDB25 Connector DTR Data Terminal Ready Modem WiringDSR Data Signal Ready versus CD Carrier Detect Reloading Software Updating SoftwareObtaining Software Via the Web Via FTPFTP NetWare Troubleshooting Flash ROM UpdatesFlash ROM Troubleshooting MSS User Guide Updating Software Compliance and Warranty Information Compliance InformationWarranty