Radius proying and RFC 2866

[[EMAIL PROTECTED]]

Hello,

We are trying to use the freeradius as a proxy server for another 
network element but we have the followin issue:

The realm code is the following:

if ((request->proxy != NULL) ||
            (request->username == NULL)) {
                DEBUG2("    rlm_realm: Proxy reply, or no user name. 
Ignoring.");
                return NULL;

That mean that if the accounting request has no User-Name attribute the 
request will be ignored. But if you read the rfc 2866 about radius 
accounting it says that 0 or 1 instance may be present. The nokia gprs 
ggsn that send us the accounting request doesn't include this username 
field, that why it was not working at first. We modified the code of 
rlm_realm.c  to remove this condition and add another one setting a 
default user-name if the attribute is not present, and now it works fine.

I would like to know your point of view on this. If you follow this rfc 
you cannot only trust the user-name field for proxying as rfc says: "it 
may be present", but there is maybe another rfc than the 2866 about 
field that should be present in an accounting request. (I m not a radius 
specialist). I hope you can give me an answer on this behaviour.

Thanks,

Arnaud G

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