Would FPSense have any affect on my LAN traffic?



  • I use Homeseer for my home automation and a chromecast plugin that allows me to cast video streams from Blue Iris to my Google Display and speakers. I don't know remember if this started before or after PFSense but the speaker client has a lot of delays and only sometime work.

    Casting the video stream no longer works. All are on the same network. Trying to figure out is this is related.


  • LAYER 8 Global Moderator

    Pfsense has nothing to do with devices talking to each other on the same layer 2 network.. Be it multicast or broadcast or unicast.. Pfsense plays no part in their conversations at all.

    The only part that pfsense would/could play would be providing dns and dhcp... So like if your clients were not getting an IP that "could" be pfsense related. If clients were set to ask pfsense for dns to look up stuff on your network, and didn't get a response then that could be pfsense.. But other that - pfsense is blind to what the clients are doing between themselves.

    Unless you are "bridging" multiple interfaces... But you made no mention of settings pfsense up as a bridge..



  • Nope, one LAN interface and one WAN on the PFsense box. Wifi is provided by a Unifi AP and all wired devices go through a Cisco switch and another HP switch.

    Since Google Assistant is a cloud based device... could it be an issue with the firewall. I have PFSense at default at the moment.

    Only thing I had running was the Squid Proxy server but have since disabled that as part of the troubleshooting process.

    I noticed two rules in my firewall that was there by default.

    One blocks RFC 1918 networks and the other is BOGON... Are they needed? Can those be deleted?


  • LAYER 8 Global Moderator

    Those are your wan.. They would have not effect on you talking outbound.. They stop rfc1918 address from hitting your port forwards, same with bogon the only time those rules come into effect if you have a port forward.

    Since all unsolicited is blocked by the default deny.

    They are not the source of your problem.

    So your problem is with google assistant?



  • @johnpoz said in Would FPSense have any affect on my LAN traffic?:

    have not effect on you talking outbound.. They stop rfc1918 address from hitting your port forwards, same with bogon the only time those rules come into effect if you have a port forward.
    Since all unsolicited is blocked by the default deny.
    They are not the source of your problem.
    So your problem is with google assistant

    It's possible the issue with HomeSeer plugin and Chromecast themselves. :(



  • It's definitely not pfSense. Your devices talk directly to each other on the same network, as John already mentioned. pfSense doesn't even see the traffic unless it needs to be routed to a different network, eg. the Internet, or a VLAN or another interface (OPT1, OPT2 etc). Your clients know their local network based on its subnet mask, and will send any traffic for outside their network to your gateway (pfSense), who forwards it out and returns the replies back to you.


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