Accounting
Phil Mayers
p.mayers at imperial.ac.uk
Tue Aug 12 16:45:44 CEST 2008
Jonathan Gazeley wrote:
> Phil Mayers wrote:
>> Your NAS needs to support interim accounting.
>>
>> If it does already, it might be as simple as adding:
>>
>> DEFAULT
>> Acct-Interim-Interval = 1800,
>> Fall-Through = yes
>>
>> ...to the "users" file; modify as appropriate of course for your config.
>
> I have added the lines above to my "users" file, replacing 1800 with a
> value of 20. However, the updates do not occur every 20 minutes. Do I
> also need to enable something on my NAS (Cisco WiSMs) to allow it to
> provide accounting on demand?
Not sure. It definitely works; we have it working here.
Are you getting *any* accounting from the WISM? You'll need:
radius acct add $server_id $server 1813 ascii secret
wlan radius_server acct add $wlan_id $server_id
I notice we've got:
wlan session-timeout $wlan_id 1800
...statements in our config, but I'm not an expert on the WISMs so I
don't know if that's required.
>
> I did also try to edit the config on my WiSMs to push the accounting
> every 20 minutes but was unable to get that to work. The guy who
> primarily looks after the WiSMs is away at the moment.
>
> How is interim accounting normally done? I don't mind if the accounting
> is pushed or pulled, whatever works.
Accounting is always pushed from the NAS to the Radius server.
>
> Thanks,
> Jonathan
>
> ----------------------------
> Jonathan Gazeley
> Systems Support Specialist
> ResNet | Wireless & VPN Team
> Information Services
> University of Bristol
> ----------------------------
>
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