{"id":1043,"date":"2021-12-12T14:49:08","date_gmt":"2021-12-12T22:49:08","guid":{"rendered":"https:\/\/angrysysadmins.tech\/?p=1043"},"modified":"2021-12-26T09:24:20","modified_gmt":"2021-12-26T17:24:20","slug":"pfsesne-create-a-dmz-network-for-use-with-video-games-and-iot-devices","status":"publish","type":"post","link":"https:\/\/angrysysadmins.tech\/index.php\/2021\/12\/grassyloki\/pfsesne-create-a-dmz-network-for-use-with-video-games-and-iot-devices\/","title":{"rendered":"Pfsesne: Create a “DMZ” network for use with Video games and IOT Devices"},"content":{"rendered":"

Before we begin, know that This subnet is NOT SECURE<\/strong><\/span> and should only be used for certain things that absolutely require<\/strong><\/span> Open NAT and UPNP like game consoles, old PC games, or other insecure things. I would strongly advise setting up an Intrusion Detection system or Intrusion Prevention System like suricata<\/a>. It will allow any device to open a port on the firewall and allow any connection inbound. I initially set this up because I was having issues with Command an Conquer games with C&C online, Anno 2070, and Xbox live. Make sure to isolate this network to only itself, as it is a security problem if you allow a device on this network to access your internal networks (I go over this).<\/p>\n

Interfaces<\/h2>\n

I’ll leave this one to you. My interface is named DMZ. <\/strong>I have mine setup as a vlan, but a physical interface is better, more secure, and easier to manage.<\/p>\n

 <\/p>\n

Firewall<\/h2>\n

<\/h4>\n

Firewall -> Rules -> Aliases -> IP<\/h5>\n

Click add
\nName: CIDR_ReservedInternalNetworkIPs<\/strong>
\nNetwork or FQDN:\u00a010.0.0.0 \/ 8<\/strong>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 172.16.0.0 \/ 12<\/strong>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 192.168.0.0 \/ 16<\/strong><\/p>\n

<\/h4>\n
Firewall -> Rules -> DMZ -> Add<\/h5>\n

Action: Pass<\/strong>
\nInterface: DMZ<\/strong>
\nAddress Family: IPv4+IPv6<\/strong>
\nProtocol: TCP\/UDP<\/strong>
\nSource: DMZ net<\/strong>
\nDestination: Check invert match<\/strong>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Single host or Alias<\/strong>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 CIDR_ReservedInternalNetworkIPs<\/strong>
\nDescription: Don’t allow DMZ to connect to internal IP addresses.<\/strong><\/p>\n

<\/h2>\n

UPNP<\/h2>\n

Services -> UPnP & NAT-PMP<\/h5>\n

Enable: Check<\/strong>
\nUPnP Port Mapping: Check
\n<\/strong>NAT-PMP Port Mapping: Check<\/strong>
\nExternal Interface: DMZ
\n<\/strong>ACL Entries: allow 1024-65535 192.168.69.1\/24 1024-65535<\/strong><\/p>\n

<\/h2>\n

NAT<\/h2>\n

System -> Advanced -> Firewall and NAT<\/h5>\n

Scroll down to Network Address Translation<\/p>\n

NAT Reflection mode for port forwards: Pure Nat
\n<\/strong>Enable NAT Reflection for 1:1 NAT: Checked
\n<\/strong>Enable automatic outbound NAT for Reflection: Checked<\/strong><\/p>\n

 <\/p>\n

Firewall -> NAT -> Outbound<\/p>\n

Set to Hybrid
\nAdd mapping
\nInterface: WAN<\/strong>
\nProtocol: Any<\/strong>
\nSource: Network<\/strong> | 192.168.69.0<\/strong> \/ 24<\/strong>
\nAddress: Interface Address<\/strong>
\nport or range: Check Static Port<\/strong>.<\/p>\n

<\/h2>\n

Reset States<\/h2>\n

Finally, reset the state table. This will apply our NAT rules.<\/p>\n

Diagnostics -> States -> Reset States<\/h5>\n

State Table: Check<\/strong><\/p>\n

Then press reset.<\/strong> This should take a min or so and will cause a brief network disruption.<\/p>\n

You should be good to go now. If you have any issues please post them down below. If its not working manually add port forward, That should fix it.<\/p>\n","protected":false},"excerpt":{"rendered":"

Before we begin, know that This subnet is NOT SECURE and should only be used for certain things that absolutely require Open NAT and UPNP like game consoles, old PC games, or other insecure things. I would strongly advise setting up an Intrusion Detection system or Intrusion Prevention System like suricata. It will allow any
Read More »<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[196,105,193],"tags":[],"coauthors":[39],"class_list":["post-1043","post","type-post","status-publish","format-standard","hentry","category-bsd","category-firewall","category-pfsense"],"yoast_head":"\nPfsesne: Create a "DMZ" network for use with Video games and IOT Devices - Angry Sysadmins<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/angrysysadmins.tech\/index.php\/2021\/12\/grassyloki\/pfsesne-create-a-dmz-network-for-use-with-video-games-and-iot-devices\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pfsesne: Create a "DMZ" network for use with Video games and IOT Devices - Angry Sysadmins\" \/>\n<meta property=\"og:description\" content=\"Before we begin, know that This subnet is NOT SECURE and should only be used for certain things that absolutely require Open NAT and UPNP like game consoles, old PC games, or other insecure things. I would strongly advise setting up an Intrusion Detection system or Intrusion Prevention System like suricata. 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I current maintain a homelab with about 3TB of RAM, 240+ TB of storage, tons of CPU cores, and 100gbit networking backbone in the garage running up my electricity bill.\",\"url\":\"https:\\\/\\\/angrysysadmins.tech\\\/index.php\\\/author\\\/grassyloki\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Pfsesne: Create a \"DMZ\" network for use with Video games and IOT Devices - Angry Sysadmins","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/angrysysadmins.tech\/index.php\/2021\/12\/grassyloki\/pfsesne-create-a-dmz-network-for-use-with-video-games-and-iot-devices\/","og_locale":"en_US","og_type":"article","og_title":"Pfsesne: Create a \"DMZ\" network for use with Video games and IOT Devices - Angry Sysadmins","og_description":"Before we begin, know that This subnet is NOT SECURE and should only be used for certain things that absolutely require Open NAT and UPNP like game consoles, old PC games, or other insecure things. 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