eap Mailing List: Re: network discovery & selection: problem definition

[Michael Richardson (mcr]

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    mcr>   However, GammaCoffee has found a way to make money without spending
    mcr> much.
    mcr>   They set their ESSID to "delta", and respond to EAP.

    Farid> Is this a legal thing to do?  That is, having two overlapping
    Farid> hotspots whose ESSID values are the same.  It seems that this will
    Farid> create other problems ...!  But, let's go on with this assumption.

  It is unlicensed space. Everything is legal, as long as you don't exceed
the transmit power. 
  Further, multiple APs on the same ESSID - well, that's how we arrange to
cover more space. This is a feature of 802.11.

  At this point, Farid's choice of non-Usenet anti-quoting loses me
completely, so he'll have to ask his question again.
            (see http://www.lemis.com/email/fixing-outlook.html)

    Farid> Here you losing me!  Are we still talking about authentication
    Farid> packets here?  Who is passing the packets to DeltaCoffee's AP? 

  GammaCoffee's AP takes the packets from the client machine, NATs them,
and then *retransmits* them to Delta.

    Farid> How do supplicant's IP packets get sent to Delta hotspot?  If it
    Farid> double NATed, I assume that the packets are forwarded by some
    Farid> Access Router within Gamma to Delta.  That means that there has to
    Farid> be some business agreement between Gamma and Delta, otherwise
    Farid> Delta can simply drop the packets.  

  Delta thinks that Gamma is just another flat-rate customer.

]       ON HUMILITY: to err is human. To moo, bovine.           |  firewalls  [
]   Michael Richardson,    Xelerance Corporation, Ottawa, ON    |net architect[
] mcr [at] xelerance.com      http://www.sandelman.ottawa.on.ca/mcr/ |device 
driver[
] panic("Just another Debian GNU/Linux using, kernel hacking, security guy"); [
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