[Chilli] uam redirect fail

[Russell Mike]

i had similar issue when i launched CoovaChilli in hosted environment from
ISP data center. Approximately 35% devices were not getting login page at
all, hence others were able to.The NIC for those devices were unable to
handle MTU of 1504 becomes after VLAN Tag (4Bytes) because NIC do not
support jumbo frame. i did it by setting following directive and never had
the problem again. COOVA is up for over two year since, nearly 5000
concurrent user browse during peak hours.

Of course solution is only applicable if it is VLAN setup.

I configured tcpmss in config file
HS_TCPMSS=1400

i configured mtu in chilli.conf
mtu=1400

You would need to restart instance(s) to take effect. lets see if this
helps.

Thanks / Prabhpal Singh








On Tue, Nov 11, 2014 at 10:21 PM, Sanity <sales at sanitycomputers.com.au>
wrote:

> Thanks David, the problem is I can’t replicate the error… the site is not
> local to me and hundreds of users have no problem.
>
>
>
> It’s not an ssl enabled radius server.
>
> It happens on coovachilli 1.28 & 1.29 on openwrt (using Cloudtrax firmware
> and the old Robin).
>
> I’ve considered it may be a DNS problem yet the radius server can be
> accessed by these clients – just not via the redirect.
>
>
>
> I will check whether I can setup tcpdump on one of the routers.
>
> Are you able to explain the pre requisites or process for the redirect to
> happen?
>
>
>
> Cheers.
>
>
>
> *From:* David Bird [mailto:dbird at google.com]
> *Sent:* Wednesday, 12 November 2014 6:28 AM
> *To:* Sanity
> *Cc:* chilli at coova.org
> *Subject:* Re: [Chilli] uam redirect fail
>
>
>
> Use wireshark (or tcpdump) to get a better picture of what's happening
> with that specific client...
>
>
>
> Are you redirecting to a HTTPS portal page? if so, make sure your cert
> provider's CRL server (where it checks to see if the server cert was
> revoked) is in your walled garden.
>
>
>
> On Sun, Nov 9, 2014 at 1:42 PM, Sanity <sales at sanitycomputers.com.au>
> wrote:
>
> Hi all,   Some of our hotspot users are not been redirected to a radius
> server from a coova chilli nas. The default coova  redirect page with the
> wireless hotspot logo just stops and eventually the browser times out.
>
>
>
> The most common device to have the issue is a Samsung tablet, and often
> IOS devices. It does not seem to happen on most other OS’s.
>
>
>
> And it does not always happen…  I’ve seen many coova-chilli redirect
> threads but not specifically like this.
>
>
>
> Any ideas on what could stop the redirect like this?
>
>
>
> Regards
>
>
> Jim
>
>
>
>
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>
>
>
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