WiMAX TLV value correct in debug but not correct in packet capture

James Leavitt james.leavitt at corp.xplornet.com
Tue Jul 30 17:01:33 CEST 2013

Thank you Gentlemen,

I am working with Alvarion CPEs but a WiChorus ASN, which I have setup
on a commercial AAA without issues. I also have Freeradius working with
WiChorus on another instance also but not for receiving these particular

I initially performed a tcpdump and this was where I was seeing the
different values (which match radsniff btw) than what was programmed. I
then compared the capture to our working solution (a commercial radius
platform) and confirmed that the values radsniff / tcpdump were what I
was expecting, which in turn do not match the output from Freeradius. I 
feel the problem is when the values are copied to the outer tunnel, but
just these TLVs get corrupted.

I'll take a look at 3.0.0 and see if I can work with that and post back
my findings.

Thanks again,


On 07/30/2013 11:13 AM, David Peterson wrote:
> RE: WiMAX TLV value correct in debug but not correct in packet capture
> Don't forget if the hardware is Alvarion or Runcom you cannot use the
> standard dictionaries. 
> Alvarion (now Telrad) is proprietary but similar to the standard
> dictionary
> and Runcom only uses their own.
> David
> -----Original Message-----
> From:
> freeradius-users-bounces+davidp=wirelessconnections.net at lists.freeradius.org
> [mailto:freeradius-users-bounces+davidp=wirelessconnections.net at lists.freera
> dius.org] On Behalf Of Alan DeKok
> Sent: Tuesday, July 30, 2013 8:02 AM
> To: FreeRadius users mailing list
> Subject: Re: WiMAX TLV value correct in debug but not correct in packet
> capture
> James Leavitt wrote:
> > I've probably missed something or buggered an option, but I've
> > searched and searched and cannot find an answer to this. This is for a
> > WiMAX deployment and am using the built in dictionaries. The issue is
> > with the WiMAX-Packet-Flow-Descriptor tlv .
> ...
> > Everything looks good but on a pcap / radsniff I get this:
>   Put the raw "pcap" file somewhere.  Maybe the issue is the server, maybe
> it's radsniff.
>   You could also try the git branch "release_branch_3.0.0".  It has a
> re-written WiMAX encoder / decoder, which now works everywhere.
>   Alan DeKok.
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