OpnSense - adaley0518/Tech_Journal GitHub Wiki

OpnSense is an open-source firewall. The Configuration steps include:

• Step 1: assign interfaces so they are in order as they appear on the vSphere configuration. The goal is to get WAN as the first interface and LAN as the second.
  • Select/option 1 (allows to reassign interfaces)
  • Do NOT configure VLANs now
  • WAN interface change to em0
  • LAN interface change to em1
  • When prompted for an optional interface, enter
  • The interfaces should have successfully changed
    • WAN -> em0
    • LAN -> em1
• Step 2: set Interface IP address
  • Select/option 2 (set interface IP address)
    • select 2 again for WAN interface
    • NO DHCP to configure WAN IPv4 address
    • enter address of 10.0.17.x, (x was assigned /24 octet) == 10.0.17.115
    • 24 bit submask
    • WAN upstream gateway is 10.0.17.2
    • use gateway as IPv4 name server
    • NO IPv6, NO DHCP
    • Press "ENTER" to pass IPv6 configuration
    • NO to HTTP for the GUI
  • Select/option 2 (again)
    • select 1 to pick LAN interface
    • NO DHCP
    • LAN IP address 10.0.5.2 (every student is the same/gateway too)
    • 24 bit subnet mask
    • NO upstream LAN gateway, press "ENTER" (you are the gateway)
    • NO DHCP
    • Press "ENTER" to pass IPv6 configuration
    • do not enable a LAN DHCP Server
    • No revert to HTTP

Gui Configuration in Windows 10 server for Opnsese:

• Step 1: type the gateway into the web browser (10..0.5.2) and use the same password as when logging into the OpnSense console
• Step 2: Go to system wizard: in general information fill in the information below in the spaces provided
  • Hostname: fw1-yourname
  • Domain: yourname.local
• Step 3: configure WAN interface in the spaces provided with the info below
  • RFC1918 Networks: Uncheck "Block private networks from entering via WAN"
• Step 4: set Root Password: change only if need be