Re: [Captive-portals] Signals from the network and ICMP

2018-05-02 Thread Martin Thomson
On Wed, May 2, 2018 at 10:06 PM Michael Richardson wrote: > Have we considered TCP RST already? (I don't think it's better than ICMP, but > I don't remember it being discussed yet) We can now if you like. But not all protocols use TCP. David (Bird) listed some of the things that are in common u

Re: [Captive-portals] Signals from the network and ICMP

2018-05-02 Thread Michael Richardson
Martin Thomson wrote: > The form of that signal is next to consider. We have discussed ICMP > DestUnreach with a both new and existing codes. The feedback in London was > that maybe DestUnreach has some downsides and a new message would be > better. A new ICMP message would al

Re: [Captive-portals] Signals from the network and ICMP

2018-05-02 Thread Martin Thomson
Just to reiterate what Erik said here. Based on the discussion in London we have a better (but not perfect) understanding of what a signal would need to look like. But until we have a concrete proposal that fits the requirements, all we have is a liability. As a chair, I'm interested in us compl