Running OPNSense Firewall and Router in a Proxmox VM

#OPNSense #VirtualMachine #Proxmox #Firewall

Full steps can be found at https://i12bretro.github.io/tutorials/0703.html

What is OPNSense?

OPNsense is an open source, easy-to-use and easy-to-build FreeBSD based firewall and routing platform. OPNsense includes most of the features available in expensive commercial firewalls, and more in many cases. It brings the rich feature set of commercial offerings with the benefits of open and verifiable sources. - https://opnsense.org/about/about-opnsense/

Creating the OPNSense VM

   01. Download the OPNSense AMD64 DVD .iso  https://opnsense.org/download/    02. Extract the downloaded OPNSense .bz2    03. Log into the ProxMox web UI    04. Select a storage from the left navigation pane to upload the .iso to    05. Select ISO Images in the left sub-navigation pane    06. Upload the OPNSense .iso file to the ProxMox ISO image library    07. Right click the ProxMox node name ≫ Create VM    08. Type OPNSense in the name field and set a unique VM ID ≫ Next    09. On the OS tab, set the Type field to Linux, Version to 5.x - 2.6 Kernel and select the OPNSense .iso in the ISO Image field ≫ Next    10. On the System tab, leave the defaults ≫ Next    11. On the Hard Disk tab, set the Disk size field to 8 ≫ Next    12. On the CPU tab, set Cores field to 2, Type field to Host ≫ Next    13. On the Memory tab, set the Memory to 2048 and Uncheck Ballooning Device ≫ Next    14. On the Network tab, set the Model field to VirtIO (paravirtualized), Uncheck the Firewall box ≫ Next    15. Verify the summary and click Finish    16. Click the OPNSense VM in the left navigation menu ≫ Select Hardware from the left sub-navigation menu    17. Click Add ≫ Network Device    18. Set the Model field to VirtIO (paravirtualized), Uncheck the Firewall box ≫ Click Add    19. Select Options from the left sub-navigation menu ≫ Double click Use tablet for pointer ≫ Uncheck the Enabled box ≫ Click OK    20. Right click the OPNSense VM in the left navigation pane ≫ Start    21. Click console in the left sub-navigation menu    22. Press Enter at the Welcome screen    23. Wait for the login prompt to display    24. Login with the username installer and password opnsense    25. Select a keymap ≫ Press Enter    26. Select Install (UFS) ≫ Press Enter    27. Select the QEMU HARDDISK option ≫ Press Enter    28. Select Yes to confirm destroying the contents of the disk ≫ Press Enter    29. Wait for OPNSense to copy files and install    30. Press Enter to Change Root Password    31. Type and re-type a new root password ≫ Press Enter    32. Select Complete Install ≫ Press Enter    33. Select Shutdown ≫ Stop to power off the VM    34. Navigate back to the Hardware options    35. Double click the CD/DVD Drive ≫ Select Do not use any media ≫ Click OK    36. Right click the OPNSense VM in the left navigation pane ≫ Start    37. Click console in the left sub-navigation menu    38. Welcome to the OPNSense terminal

Configuring Network Interfaces and Web UI

   01. At the login prompt, login with username root and the root password set earlier    02. At the OPNSense menu, select Set interface IP address by typing 2 and pressing Enter    03. Enter the number that corresponds to the LAN interface ≫ Press Enter    04. At the DHCP prompt type n ≫ Press Enter    05. Enter a LAN IP address on the same subnet as your LAN    06. At the bit count prompt type 24 ≫ Press Enter    07. Leave the IPv4 upstream gateway blank press Enter    08. At the IPv6 WAN tracking type n ≫ Press Enter    09. At the IPv6 DHCP prompt type n ≫ Press Enter    10. Leave the IPv6 address blank and press Enter    11. At the DHCP server prompt type n ≫ Press Enter    12. At the revert to HTTP prompt type y ≫ Press Enter    13. At the Restore web GUI access defaults type y ≫ Press Enter    14. The http address of the OPNSense Web UI will be displayed    15. Minimize the OPNSense VM and open a web browser    16. Navigate to the web UI http address    17. Log into the web UI with the username root and the root password set earlier    18. Enjoy exploring OPNSense  

Connect with me and others

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