"
I thought I was going mad so I have done this three times now and get the same result.
Hardware is Sophos XG210 chassis, have installed OPNsense 25.1, in UEFI mode, all boots and works fine.
XG210 has eight Ethernet ports (6 x GbE and 2 x SFP).
Out of the box OPNsense comes up with:
igb0 -> LAN with 192.168.1.1/24
igb1 -> WAN (no IP address yet)
I plug igb0 in to my Netgear VLAN enabled GS728TPv2 switch on the same VLAN (VLAN144) as my Win 11 PC. I add a secondary IP address to the network interface on the Win 11 PC (in this case 192.168.1.40) and I can access the OPNsense UI - this works because the PC and XG210 are on the same VLAN.
In OPNsense I add a third interface:
igb2 -> MGMT and set the IP address to 192.168.2.1/24
I check in System > Settings > Access and it says the admin interface is defaulted to 'all interfaces'.
I have set the UI to be HTTP rather than HTTPS and I have 'Applied Settings'.
I add another secondary IP to my Win 11 PC (192.168.2.40/24) and move the cable on from the Netgear from igb0 to igb2 on teh XG210 and attempt to access http://192.168.2.1 without success (connection timeout).
If I move the cable back to igb0 I can no longer access the UI on 192.168.1.1 either.
I habe now lost UI access to OPNsense so I go to the console and use option (4) Factory reset and start again I can access the UI on 192.168.1.1.
Rinse and repeat ...
Why does adding a management interface break the UI on the LAN interface?
My specific use-case needs me to shoe-horn in OPNsense as a replacement for another firewall that has a WAN interface and where the LAN interface has eight VLANs... adding a management interface was my preference to alow both the WAN and VLANs on the LAN interface to be configured without getting locked out ;-)
Where am I going wrong?
Mike
Hardware is Sophos XG210 chassis, have installed OPNsense 25.1, in UEFI mode, all boots and works fine.
XG210 has eight Ethernet ports (6 x GbE and 2 x SFP).
Out of the box OPNsense comes up with:
igb0 -> LAN with 192.168.1.1/24
igb1 -> WAN (no IP address yet)
I plug igb0 in to my Netgear VLAN enabled GS728TPv2 switch on the same VLAN (VLAN144) as my Win 11 PC. I add a secondary IP address to the network interface on the Win 11 PC (in this case 192.168.1.40) and I can access the OPNsense UI - this works because the PC and XG210 are on the same VLAN.
In OPNsense I add a third interface:
igb2 -> MGMT and set the IP address to 192.168.2.1/24
I check in System > Settings > Access and it says the admin interface is defaulted to 'all interfaces'.
I have set the UI to be HTTP rather than HTTPS and I have 'Applied Settings'.
I add another secondary IP to my Win 11 PC (192.168.2.40/24) and move the cable on from the Netgear from igb0 to igb2 on teh XG210 and attempt to access http://192.168.2.1 without success (connection timeout).
If I move the cable back to igb0 I can no longer access the UI on 192.168.1.1 either.
I habe now lost UI access to OPNsense so I go to the console and use option (4) Factory reset and start again I can access the UI on 192.168.1.1.
Rinse and repeat ...
Why does adding a management interface break the UI on the LAN interface?
My specific use-case needs me to shoe-horn in OPNsense as a replacement for another firewall that has a WAN interface and where the LAN interface has eight VLANs... adding a management interface was my preference to alow both the WAN and VLANs on the LAN interface to be configured without getting locked out ;-)
Where am I going wrong?
Mike
