two eth interfaces

Hello All,

I need to setup two eth interfaces, and configure two separate but interconnected LANs.
One will be the usual office LAN, the other will be dedicated to Video Cam traffic, since OMV will be the storage.
The first one will be a DHCP client, the second a DHCP server.
I am looking for a way to do this from the webgui, but I haven't found anything.
Should I go with command line, or do I risk to disrupt the install database?

Thanks in advance for any helpful comments,

-Gian

in the meanwhile, I found you can ADD a network interface indeed from the webgui, however, I got a message error while saving the new config...

Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C; systemctl start 'networking' 2>&1' with exit code '1': Job for networking.service failed because the control process exited with error code.See "systemctl status networking.service" and "journalctl -xe" for details.
Error #0:OMV\ExecException: Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C; systemctl start 'networking' 2>&1' with exit code '1': Job for networking.service failed because the control process exited with error code.See "systemctl status networking.service" and "journalctl -xe" for details. in /usr/share/php/openmediavault/system/process.inc:175Stack trace:#0 /usr/share/php/openmediavault/system/systemctl.inc(86): OMV\System\Process->execute(Array, 1)#1 /usr/share/php/openmediavault/system/systemctl.inc(146): OMV\System\SystemCtl->exec('start', NULL, false)#2 /usr/share/openmediavault/engined/module/networking.inc(44): OMV\System\SystemCtl->start()#3 /usr/share/openmediavault/engined/rpc/config.inc(194): OMVModuleNetworking->startService()#4 [internal function]: OMVRpcServiceConfig->applyChanges(Array, Array)#5 /usr/share/php/openmediavault/rpc/serviceabstract.inc(123): call_user_func_array(Array, Array)#6 /usr/share/php/openmediavault/rpc/serviceabstract.inc(149): OMV\Rpc\ServiceAbstract->callMethod('applyChanges', Array, Array)#7 /usr/share/php/openmediavault/rpc/serviceabstract.inc(536): OMV\Rpc\ServiceAbstract->OMV\Rpc\{closure}('/tmp/bgstatusws...', '/tmp/bgoutputXu...')#8 /usr/share/php/openmediavault/rpc/serviceabstract.inc(159): OMV\Rpc\ServiceAbstract->execBgProc(Object(Closure))#9 /usr/share/openmediavault/engined/rpc/config.inc(213): OMV\Rpc\ServiceAbstract->callMethodBg('applyChanges', Array, Array)#10 [internal function]: OMVRpcServiceConfig->applyChangesBg(Array, Array)#11 /usr/share/php/openmediavault/rpc/serviceabstract.inc(123): call_user_func_array(Array, Array)#12 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod('applyChangesBg', Array, Array)#13 /usr/sbin/omv-engined(536): OMV\Rpc\Rpc::call('Config', 'applyChangesBg', Array, Array, 1)#14 {main}

I was not able to setup the second eth with the webGUI, but now I have two NICs up and working, having configured them manually, adding the each stanza in /etc/network/interfaces.d/.

However, the second eth does not show up in the webGUI, so I cannot setup a DHCP server on the NIC..

I am worried that if I proceed with a manual setup, I'll end with a somewhat "crippled" install of OMV.

here: Customize /etc/network/interfaces the OMV way [>= 1.11]
says: This is obsolete starting with openmediavault 4.0.18.....Simply put your custom interface stanzas in a file below the /etc/network/interfaces.d directory.

however, Matthias Kurz says..
https://call-a-tux.de/openmediavault-ip-alias/