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One of the interesting points he makes is that forwarding ports with IGDP is a small part of UPnP's functionality. By equating the two and discarding all of UP
by addingnumbers 5y ago
One of the interesting points he makes is that forwarding ports with IGDP is a small part of UPnP's functionality.
By equating the two and discarding all of UPnP's other local service discovery features, for fear of IGDP specifically, perhaps we are throwing the baby out with the bathwater.
- tinus_hn 5y agoDisabling upnp on your router does not prevent your devices from using it amongst themselves. The only service advertised by the router is the part you don’t want anyway.
- addingnumbers 5y agoThat's not entirely true, a router with a full PnP stack would listen to and participate in SSDP discover queries, enabling more discoverable services per host. Only one service can listen on port 1900 for DISCOVER queries, but a SSDP-capable router can cache NOTIFY messages from services that can't listen, and reply to queries for them itself with the same record. It's admittedly a weak point to make in the context of consumer gear, though. Last I checked, even router OS's with sprawling functionality like OpenWRT and PFsense don't offer SSDP relaying as a supported feature. If you spent less than $200 on your router, there is probably no difference between disabling all of its UPnP capability and disabling IGDP specifically.