Subject: Re: ROAM/CONNECT event with PORT_AUTHORIZED
To: Ben Greear <greearb@candelatech.com>,
        Johannes Berg <johannes@sipsolutions.net>,
        Arend van Spriel <arend.vanspriel@broadcom.com>,
        Arend van Spriel <arend@broadcom.com>,
        Jouni Malinen <j@w1.fi>
Cc: Avraham Stern <avraham.stern@intel.com>,
        linux-wireless <linux-wireless@vger.kernel.org>
References: <1505378361.31630.2.camel@sipsolutions.net>
 <e4a3ab99-f49a-0849-56d7-71ce19b1f323@broadcom.com>
 <1505389462.31630.6.camel@sipsolutions.net>
 <e418234f-00a0-dd44-7352-d279f49f83e5@gmail.com>
 <1505416658.31630.15.camel@sipsolutions.net>
 <9219316a-5556-6acf-30de-e9aa65a05706@gmail.com>
 <6d0ad07b-ca89-19a1-d3c2-ad94915b942a@candelatech.com>
 <c2a820c4-f169-6a4d-13f3-3df323f1556a@gmail.com>
 <5436d106-0b4a-9158-58bf-ff84b231cd19@candelatech.com>
From: Denis Kenzior <denkenz@gmail.com>
Message-ID: <c97ecdb4-fe7a-e79a-d73e-32166beb1e11@gmail.com> (sfid-20170914_222645_761527_F54490FD)
Date: Thu, 14 Sep 2017 15:26:39 -0500
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In-Reply-To: <5436d106-0b4a-9158-58bf-ff84b231cd19@candelatech.com>
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Sender: linux-wireless-owner@vger.kernel.org

Hi Ben,
> 
> How do you re-confirm them?  There are definitely cases where 
> SSID/Security is the same but each
> AP has its own DHCP server and roaming between them will require getting 
> a new DHCP address (on
> the same (NAT'd) subnet and with same gateway, likely as not).
> 

Using DHCPREQUEST to verify obtained parameters, or the DHCPv6 
equivalent Confirm message.  This obviously requires some integration 
between the dhcp daemon and the supplicant.

Regards,
-Denis