Date: Sun, 5 Apr 2015 15:20:27 +0400
On 5 April 2015 at 15:18, Mohammad Nadim <nadim.attari_at_gmail.com> wrote:
>
>
> On 5 April 2015 at 14:51, Loganaden Velvindron <loganaden_at_gmail.com>
> wrote:
>
>> On Sun, Apr 5, 2015 at 10:35 AM, Ish Sookun <ish_at_hacklog.in> wrote:
>>
>> > The issue needs to be investigated at the hotspot's router level. It
>> might
>> > me keeping addresses in the MAC table for more than 24 hours or and thus
>> > running out of addresses when new devices request.
>>
>> Are you talking about pre-mapping a list of MAC addresses to a list
>> of predefined IPs ? This happens in cases where you already know the
>> list of Mac addresses beforehand. In this particular case, it's not a
>> practical solution, and I don't think that they use this.
>>
>> I think that they just have a small range for their dhcp addresses,
>> and they didn't think in terms of maximum number of users in the area.
>> In any case, they need to push for reserve of the dhcp pool.
>>
>
>
> Some routers when they lease an IP to a device (thr' DHCP), they lease it
> for 24 hours (default setting). Hence early in the morning, the first 254
> people (xxx.xxx.xxx.2 to xxx.xxx.xxx.255) can connect easily while others
> who shall come later during the day will have difficulty to get an IP
> (since all slots have been leased).
>
> The simple solution is to modify this parameter (via the admin of the
> router) and enable only 1 hour lease for an IP. After 30 minutes, the
> devices shall get a new IP in case they are still connected, or if they are
> gone, IP slots can be freed.
>
To read "After 1 hour" instead of "After 30 minutes"
>
> Example (taken from Google search):
>
>
>
>
>
>> > You could still have got a decent connection if you forced your device
>> to a
>> > static IP. Although that would be just a counter solution :-)
>>
>> The easiest way would be to have multiple pools of private addresses.
>
>
>
> Static IP is a solution IMHO, but not everyone will be able to do this and
> is not practical for the public.
>
>
> Best regards,
> Nadim Attari
>
>
>
>
>
(image/png attachment: image001.png)