Hi Ben,
On 09/14/2017 03:29 PM, Ben Greear wrote:
On 09/14/2017 01:26 PM, Denis Kenzior wrote:
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.
Do you want to allow the just-now-roamed station to use its old IP
address(es) while you are
confirming?
I think it is sane to assume that the IP address _should_ be the same.
The 802.11 spec expects this even. This is to handle bizarre networks
that don't do this properly.
If not, how is this different from just re-doing DHCP like normal?
You get to use your old IP address. So e.g. your VoIP call doesn't
disappear if you decide to switch access points.
And if so, you will in some cases be allowing duplicate IP addresses on
a network?
Life is never perfect ;)
Regards,
-Denis
