I use standard dictionary attribute 3GPP-SGSN-Address, which is located in ( in old and new one version of freeradius )

/app/radius/freeradius-2.2.0/share/freeradius/dictionary.3gpp:ATTRIBUTE     3GPP-SGSN-Address                                    6                ipaddr

My accouting packet looks like :

[radiusd@tdrad1 test]$ /app/radius/freeradius-2.2.0/bin/radclient -x -t 10 -r 1 -f wapgtw/acct.req -d /app/radius/freeradius-2.2.0/etc/raddb/ggsn-acct/ localhost:2813 acct testing123

Sending Accounting-Request of id 153 to 127.0.0.1 port 2813

                NAS-Port-Type = Virtual

                X-Ascend-Dial-Number = "<U+0557>\331\025"

                Acct-Session-Id = "d597d91572f51ab3"

                Proxy-State = 0x323036

                Service-Type = Framed-User

                Called-Station-Id = "orangewap"

                Acct-Link-Count = 1

                X-Ascend-Metric = 1928665779

                Acct-Authentic = Local

                Acct-Status-Type = Start

                NAS-IP-Address = 10.64.192.1

                X-Ascend-PRI-Number-Type = 8

                3GPP-SGSN-Address = 213.151.252.35

                Calling-Station-Id = "421905012405"

                X-Ascend-IPX-Alias = 4294967295

                Framed-Protocol = GPRS-PDP-Context

                User-Name = "421908503371"

                NAS-Identifier = "ggsn-01-bb1.orange.sk"

                Acct-Multi-Session-Id = "d597d9153962de6b"

                Framed-IP-Address = 10.64.210.141

[files] preproxy_users: Matched entry DEFAULT at line 39

[files] WARNING: Unknown module "3GPP-SGSN-Address" in string expansion "%"

++[files] returns ok

Any help ?

From: Alan Buxey [mailto:A.L.M.Buxey@lboro.ac.uk]
Sent: Wednesday, November 28, 2012 9:57 AM
To: BALSIANOK, Peter; freeradius-users@lists.freeradius.org
Subject: Re: preproxy_users

Sounds like your old server had a local dictionary entry that your new server doesn't have

alan