2017-01-07 - Re: [GRASE-Hotspot] Semi-urgent: coova-chilli[1340]: dhcp.c: 644: reached max connections 512!

Header Data

From: Michael Raynor <mx***1@gmail.com>
Message Hash: ddd84ded4bc5d8a7fdca8101a68a2d1860790e0f5a6c4a753a88f1b9ee33a613
Message ID: <e2f56e86-7cbf-4e26-87e3-63fdd4cf44cf@grasehotspot.org>
Reply To: <CAESLx0+D5O5QPz37KYes+ZX2NAz2YZzhAYkKJpMa5CSAdgSugA@mail.gmail.com>
UTC Datetime: 2017-01-07 21:04:15 UTC
Raw Date: Sat, 07 Jan 2017 20:04:15 -0800

Raw message 

Hi Tim,

We are now sitting at 520 connections and haven't seen the error.

Just need to know whether the setting will be persistent with any Grase 
software updates.

Thanks for your help!

Michael


On Sunday, 8 January 2017 10:40:24 UTC+11, timwhite88 wrote:
>
> In theory, you need to add $HS_MAXCLIENTS to /etc/chilli/config with the 
> value of MAXCLIENTS that you want. However, as you state, there is a 512 
> hard coded in the coova-chilli code. It's not clear if that is a different 
> issue or not. Try setting MAXCLIENTS and then after restarting 
> coova-chilli, check that /etc/chilli/main.conf has the new maxclients line. 
> If you still hit the 512 limit, we'll just adjust the Coova Chilli version 
> we compile to have a higher limit.
>
> Regards
>
> Tim
>
> On Sun, Jan 8, 2017 at 9:20 AM, Michael Raynor <mx***.@gmail.com 
> <javascript:>> wrote:
>
>> Hi Tim (and everyone),
>>
>> We are having an issue with our Grase server where it refuses to dish our 
>> more DHCP leases.
>>
>> We are using the 10.50.0.0/16 subnet for Guests with DHCP Start of 2 
>> (10.50.0.2) and DHCP End of 65532 (10.50.255.253 or close to).
>>
>> In theory I was hoping that just the DHCP Start and End would be 
>> sufficient to make this work.
>>
>> /var/log/syslog shows the following:
>>
>> Jan  8 06:51:31 grase01 coova-chilli[1340]: message repeated 10 times: [ 
>> dhcp.c: 644: reached max connections 512!]
>> Jan  8 06:51:31 grase01 coova-chilli[1340]: dhcp.c: 5602: ARP: out of 
>> connections
>> Jan  8 06:51:33 grase01 coova-chilli[1340]: dhcp.c: 644: reached max 
>> connections 512!
>> Jan  8 06:51:33 grase01 coova-chilli[1340]: dhcp.c: 5602: ARP: out of 
>> connections
>> Jan  8 06:51:45 grase01 coova-chilli[1340]: dhcp.c: 644: reached max 
>> connections 512!
>>
>>
>> http://stackoverflow.com/questions/38784447/coovachilli-dhcp-server-limit-issue 
>> speaks of a maxclients variable of 512 hard coded into chilli - which 
>> doesn't sound like an easy fix.
>>
>> https://coova.github.io/mail-archive/chilli/2014-May/002729.html speaks 
>> of a maxclients setting that can be overwritten in the chilli config
>>
>> As part of Grase hotspot, is the maxclients variable being modified 
>> relative to the DHCP Start and DHCP End in the Admin Portal? If it isn't , 
>> can I manually whack this in there to get us out of trouble? Should I put 
>> it in the main.conf or the local.conf?
>>
>> I have restarted the Grase server and it appears to be working again, 
>> however "sudo chilli_query list | wc -l" has already crept back up to 331 
>> of the possibly 512 limit.
>>
>> We have three 1 week conferences ahead so I really want to find a 
>> solution ASAP.
>>
>> Thanks for your help,
>>
>> Michael
>>
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