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

Erik Kline <[email protected]> wrote:
    > In the latter case especially, what becomes clear is that the UE needs
    > to be able to receive an unsolicited packet.  ICMP is a canonical
    > example of receiving and processing an unsolicited packet.  But it
    > could also be something like a UDP socket listening on a well known
    > port that receives a 1-byte datagram, which causes the UE to enqueue
    > (for rate-limiting purposes) a captive API query.

On POSIX systems, it's clearly a lot easier to open a UDP socket from an
unpriviledged application than to open an ICMP socket.

Is this a consideration for you?

    >     [3] NetworkMonitor already rate limits requests from applications
    > to revalidate the network, and these would likely be no different (or
    > pretty much the same).

Or would NetworkMonitor do this anyway, and it has all the priviledges it
needs anyway?

]               Never tell me the odds!                 | ipv6 mesh networks [
]   Michael Richardson, Sandelman Software Works        | network architect  [
]     [email protected]  http://www.sandelman.ca/        |   ruby on rails    [

Michael Richardson <[email protected]>, Sandelman Software Works
 -= IPv6 IoT consulting =-

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