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To configure CHARON-AXP networking, follow these 3 steps:

  1. Load network adapter (if required)

    Use the "load" command as shown below.

    Example:

    For DEC21040 adaptersFor Intel i8255x adapters


    load DE500BA/dec21x4x NIC



    load DE602/i8255x NIC


    (информация) By default each loaded virtual network adapter uses first available PCI slot. If instead some particular slot is neded, refer to this section for details of specific placement of PCI peripherals on CHARON-AXP PCI bus.

    Note

    In AlphaStation 400 configuration use the following syntax for network adapter loading:

    load DE500AA/dec21x4x NIC irq_bus=isa



  2. Load "packet_port"

    Load "packet_port" to connect network adapter to the host hardware network card (or to a virtual network interface).

    Example:

    load packet_port/chnetwrk NDIS interface = "connection:Charon"

               

  3. Connect the loaded "packet_port" to the loaded virtual network adapter

    Connect the network adapter to the "packet_port" by setting the interface name.

    Example

    set NIC interface = NDIS


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(warning) The EIx0_MODE variable name is case insensitive, while its values are case sensitive! This is feature of OpenVMS EIDRIVER.

The values are:

ParameterDescription
"Auto"Auto-negotiate (default)
"Twisted"10Mbps half duplex
"Full"10Mbps full duplex
"Fast"100Mbps half duplex
"FastFD" 100Mbps full duplex

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Parameter

suspend_msg_on_mac_change

TypeBoolean
Value

To avoid confusion arising from non critical errors during a MAC address change, logging is by default suppressed (default value is "true").

To enable tracing during a MAC address change set this parameter to "false"

Example:

set NDIS suspend_msg_on_mac_change=false


log

Parameter

log

TypeText string
Value

If this parameter is set to some valid file name or a directory where the log files for each individual session will be stored CHARON logs Recv and Xmit packets at the emulated port layer.

If an existing directory is specified, CHARON automatically enables creation of individual log files, one for each session using the same scheme as used for the generation of the rotating log files. If the "log" parameter is omitted, CHARON does not create log.

In certain situations enabling this parameter may help to detect loss of packets.

Example:

set NDIS log="ndis.log"


set NDIS log="C:\Charon\Logs"


Note

Only existing directory can be used as a value of the "log" parameter.


legacy_mode

Parameterlegacy_mode
TypeBoolean
Value

If this parameter is set to "true" CHARON-AXP tries to use very first implementation of "packet_port" having certain restrictions such as inability to automatically change MAC address on given interface etc.

This setting may be needed if CHARON-AXP runs in VMware environment for example and you do not want to allow promiscuous mode.

In other situations please do not change its default value ("false").

Example:

set NDIS legacy_mode=true


Info

This parameter is required only if you do not want to allow promiscuous traffic for the VMware adapter/port. In this mode, CHARON-AXP uses legacy MAC address change logic, so use of this option is not desirable.

Thus for ESXi networking configuration:

  1. Create the port with e1000 adapter;
  2. Enable the promiscuous traffic;
  3. Do not use legacy_mode option in Charon's configuration file


Info

TruCluster alias vMAC option may not operate correctly in combination with "legacy_mode=true" when host is VMware virtual machine. This is because vMAC option sets adapter to promiscuous mode which does not seem operating correctly on VMware adapters.


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