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I don't get it. Also down below there's even a whole comment chain about how "hard it is" to buy a dumb TV. Why bother with all this blocking, just disable the

I don't get it. Also down below there's even a whole comment chain about how "hard it is" to buy a dumb TV. Why bother with all this blocking, just disable the surveillance entirely. Change your wifi password, don't give the new one to the TV, and use a computer as input. A TV is a big dumb monitor, full stop.

HWR_14 5y ago
The ability to wirelessly transmit to a TV on the LAN, without the ability of the TV to connect to the internet is valuable to me.
- Nextgrid 5y ago
  VLANs (if using Ethernet) or separate wireless network with no access to the internet nor your LAN (LAN->TV is OK, TV->LAN is not) is the only way to go. Anything else is a game of whack-a-mole that you're likely to lose.
  - HWR_14 5y ago
    I have extra networking hardware. I wasn't aware I could have LAN->TV but not bidirectional communication. Is there a source you know of better than googling on how to achieve this, since you seem to imply it's different than searching about VLANs since it's wireless.
    - Nextgrid 5y ago
      Technically you'd need bidirectional communication once a LAN->TV connection has been established. What I meant is to restrict connection establishment to only LAN->TV but not the other way around. In terms of configuring firewalls/etc, it really depends on your equipment, however in most cases there's already a catch-all rule to allow any established & related traffic so you only need to add a rule to allow the initial connection establishment from LAN->TV. > since you seem to imply it's different than searching about VLANs since it's wireless. When it comes to VLANs, the idea is that the Ethernet port of the TV should either be connected to a managed switch that will tag any incoming traffic on that port with a VLAN tag before sending it upstream to your router (so it can tell what it is, since at that point it'll be arriving via a port that also has trusted LAN traffic), or connect it directly to the router and have that router's port not be part of the LAN bridge. You don't have VLANs in wireless, instead you just create a new network - however the access point itself will need to either tag all traffic from said network with a VLAN tag (so again your upstream router can differentiate between that and trusted LAN traffic arriving over the same port), or if the AP is incapable of VLAN management then dedicate it to the TV network and connect it to a managed switch or dedicated port on the router as described above.
      - HWR_14 5y ago
        My naive solution was going to be to assign the non-internet devices a smaller subnet with a bad gateway, and have all the "bridging" devices have IP addresses in that subnet, but with the real subnet and gateway. I'm sure VLANs are superior, but if you could tell me what's dumb about my idea I would appreciate it. Meanwhile, do the VLANs allow the "enumerate devices" style multicast to come down from the regular LAN and be responded to?
- zeec123 5y ago
  vlans
- deleted 5y ago
  [deleted]
drcongo 5y ago
A TV also shouldn't need an operating system that takes 30 seconds to boot up and gets laggier over time until it crashes and the TV becomes unusable. There's much more to a dumb TV than just a "smart" TV with the internet switched off.

HWR_14 5y ago

The ability to wirelessly transmit to a TV on the LAN, without the ability of the TV to connect to the internet is valuable to me.

Nextgrid 5y ago
VLANs (if using Ethernet) or separate wireless network with no access to the internet nor your LAN (LAN->TV is OK, TV->LAN is not) is the only way to go. Anything else is a game of whack-a-mole that you're likely to lose.
- HWR_14 5y ago
  I have extra networking hardware. I wasn't aware I could have LAN->TV but not bidirectional communication. Is there a source you know of better than googling on how to achieve this, since you seem to imply it's different than searching about VLANs since it's wireless.
  - Nextgrid 5y ago
    Technically you'd need bidirectional communication once a LAN->TV connection has been established. What I meant is to restrict connection establishment to only LAN->TV but not the other way around. In terms of configuring firewalls/etc, it really depends on your equipment, however in most cases there's already a catch-all rule to allow any established & related traffic so you only need to add a rule to allow the initial connection establishment from LAN->TV. > since you seem to imply it's different than searching about VLANs since it's wireless. When it comes to VLANs, the idea is that the Ethernet port of the TV should either be connected to a managed switch that will tag any incoming traffic on that port with a VLAN tag before sending it upstream to your router (so it can tell what it is, since at that point it'll be arriving via a port that also has trusted LAN traffic), or connect it directly to the router and have that router's port not be part of the LAN bridge. You don't have VLANs in wireless, instead you just create a new network - however the access point itself will need to either tag all traffic from said network with a VLAN tag (so again your upstream router can differentiate between that and trusted LAN traffic arriving over the same port), or if the AP is incapable of VLAN management then dedicate it to the TV network and connect it to a managed switch or dedicated port on the router as described above.
    - HWR_14 5y ago
      My naive solution was going to be to assign the non-internet devices a smaller subnet with a bad gateway, and have all the "bridging" devices have IP addresses in that subnet, but with the real subnet and gateway. I'm sure VLANs are superior, but if you could tell me what's dumb about my idea I would appreciate it. Meanwhile, do the VLANs allow the "enumerate devices" style multicast to come down from the regular LAN and be responded to?
zeec123 5y ago
vlans
deleted 5y ago
[deleted]

drcongo 5y ago

A TV also shouldn't need an operating system that takes 30 seconds to boot up and gets laggier over time until it crashes and the TV becomes unusable. There's much more to a dumb TV than just a "smart" TV with the internet switched off.