4 ms·
You don't have to have a router. The apartment building where I live have fiber, with twisted pair to each apartment. DHCP leases from the apartment gives you a
by sebcat 9y ago
You don't have to have a router. The apartment building where I live have fiber, with twisted pair to each apartment. DHCP leases from the apartment gives you an external IP. It's possible to hook up a switch and get DHCP leases for multiple devices. I assume there's an upper limit, I've only tried it with two devices.
Now, let's say I hook up a printer to a switch in that configuration. Is it smart enough to not respond to UPnP coming from globally routable addresses?
This is why ingress filtering is important.
- zAy0LfpBZLC8mAC 9y ago> Now, let's say I hook up a printer to a switch in that configuration. Is it smart enough to not respond to UPnP coming from globally routable addresses? WTF? How would it not be utterly idiotic to not respond to UPnP requests from globally routable addresses? Why should it be impossible to print from some machine, just because it has a globally routable address?
- rsync 9y ago"Why should it be impossible to print from some machine, just because it has a globally routable address?" Because it's an Internet. Sure, it's uncommon behavior and not what most people want, but let's not completely give up on the notion of being a peer on the network. The printer serves up (printing) just like a web server serves up web pages. You should be able to run a web server and participate as a peer, globally.
- zAy0LfpBZLC8mAC 9y agoWell, your argument makes perfect sense ... just not as a reply to my rhetorical question ;-)