[PVE-User] Serial port crossover

Thomas Lamprecht t.lamprecht at proxmox.com
Tue Sep 29 14:52:04 CEST 2015


Hi,
socat should cover that just fine, see `man socat`
something like:

|socat /dev/ttyS0,raw,echo=0,crnl /dev/ttyS1,raw,echo=0,crnl |

should work.

For reusing/multiplexing ports take a look at my forum entry here:
http://forum.proxmox.com/threads/23379-Sharing-physical-COM-port-with-two-servers?p=116991#post116991
And especially the project GitHub site: https://github.com/danielinux/ttybus
It may also be helpful.

On 09/29/2015 02:35 PM, Frank, Petric (Petric) wrote:
> Hello,
>
> this may not be exactly be a proxmox problem ...
>
> I have to connect two VM servers via a (virtual) cross-over serial cable. I do not want to use the serial ports of the VM host - i.e. connect the serial interfaces from the VMs to /dev/ttyS(1/2) and use a physical x-over cable at the proxmox host.
>
> I know that I can use the "-serial:..." option to define the serial ports. But how to interconnect two of them.
>
> Is such a thing possible.
> If yes, can you give me a hint on how to do it ?
>
> Kind regards
>    Petric
>
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