CHARON-VAX for Linux virtual network

General description

It is strongly recommended to use only physical network adapters for CHARON-VAX networking to gain maximum performance. In situations where the host has only one network adapter, you can use the LINUX virtual network Interfaces ("TUN/TAP") and map individual CHARON-VAX instances to their own virtual interfaces.

There are 2 ways to create the LINUX virtual network Interfaces ("TUN/TAP"):

Using "ncu" utility
Manually

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Using "ncu" utility to establish CHARON virtual network

Login a root. Start "ncu" utility:

# ncu

Interfaces Dedicated to State
---------- ------------ ------------
eth0       host         connected to host
eth1       host         connected to host
lo         host         unmanaged from host

==================================================================
bridge name bridge id STP enabled interfaces

select action:
1 - Dedicate to CHARON
2 - Release to host
3 - Create Bridge with TAPs
4 - Destroy Bridge
5 - Print status
6 - Exit
:> 3

Enter "3" to create a bridge between the host physical network adapter and the LINUX virtual network Interfaces (TAP) and specify the physical network interface ("eth1" in our example) and a number of the virtual network Interfaces to be created (2 in our example):

Specify the interface to be used for BRIDGE:eth1
How many tap should be created:2
Forming the bridge: ..1..2..3..4..5.. addif tap0 .. addif tap1 ..7..8 done!
Formed bridge br0_eth1 attached over eth1...

select action:
1 - Dedicate to CHARON
2 - Release to host
3 - Create Bridge with TAPs
4 - Remove Bridge
5 - Print status
6 - Exit
:> 5

Now enter "5" to see the created virtual interfaces:

Interfaces Dedicated to State
---------- ------------ ------------
eth0 host         connected to host
eth1       bridge       connected to bridge
lo         host         unmanaged from host
tap0       bridge      connected to bridge
tap1       bridge       connected to bridge

==================================================================
bridge name bridge id STP enabled interfaces
br0_eth1 8000.525400698995a no tap0
tap1

select action:
1 - Dedicate to CHARON
2 - Release to host
3 - Create Bridge with TAPs
4 - Remove Bridge
5 - Print status
6 - Exit
:> E