(RADIATOR) DNS settings will not go to client

[Ingvar Berg (LI/EAB)]

Hi Peter,

I don't think there is an Ericsson GGSN 4.0, but it could be the CGSN 4.0 your telco has.
The CGSN is a Combined SGSN/GGSN node. Unfortunately, I'm not able to find someone with knowedge about this node, but the documentation for GGSN 2.0 states that the DNS attributes should be according to RFC 2548:
-----------------------------
The Vendor-ID field of the
   Vendor-Specific Attribute(s) MUST be set to decimal 311 (Microsoft).
-----------------------------

2.7.6.  MS-Primary-DNS-Server

   Description

      The MS-Primary-DNS-Server Attribute is used to indicate the
      address of the primary Domain Name Server (DNS) [16, 17] server to
      be used by the PPP peer.  It MAY be included in both Access-Accept
      and Accounting-Request packets.

   A summary of the MS-Primary-DNS-Server Attribute format is given
   below.  The fields are transmitted left to right.

    0                   1                   2                   3
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |  Vendor-Type  | Vendor-Length |           IP-Address
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
           IP-Address (cont)       |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Vendor-Type
      28 for MS-Primary-DNS-Server

   Vendor-Length
      6

   IP-Address
      The IP-Address field is 4 octets in length.  It contains the IP
      address of the primary DNS server.

2.7.7.  MS-Secondary-DNS-Server

   Description

      The MS-Secondary-DNS-Server Attribute is used to indicate the
      address of the secondary DNS server to be used by the PPP peer.
      It MAY be included in both Access-Accept and Accounting-Request
      packets.

   A summary of the MS-Secondary-DNS-Server Attribute format is given
   below.  The fields are transmitted left to right.

    0                   1                   2                   3
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |  Vendor-Type  | Vendor-Length |           IP-Address
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
           IP-Address (cont)       |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Vendor-Type
      29 for MS-Secondary-DNS-Server

   Vendor-Length
      6

   IP-Address
      The IP-Address field is 4 octets in length.  It contains the IP
      address of the secondary DNS server.
--------------------------

Migth be worth a try, even if the possibility of Ericsson having two similar products with different detail implementation shouldn't be underestimated ;-)

HTH,
Ingvar

> -----Original Message-----
> From: owner-radiator at open.com.au [mailto:owner-radiator at open.com.au]On
> Behalf Of Peter Lindeman
> Sent: den 21 juli 2004 17:17
> To: radiator at open.com.au
> Subject: (RADIATOR) DNS settings will not go to client
> 
> 
> Hello,
> 
> We are using Radiator to authenticate GPRS users. As well as 
> the IP we 
> also want to send the primary DNS server as a parameter.
> 
> The radius client is  an Ericsson GGSN 4.0
> 
> This is what we have in the config file :
> 
> IN the addresspool
> 
> <AddressPool pool1>
> 		Subnetmask	255.255.255.0
> 		Range	10.2.0.9 10.2.0.100
> 		DNSServer 192.168.3.4
> </AddressPool>
> 
> in <AuthBy DYNADDRESS> we have
> 
> MapAttribute DNSSERVER, Cisco-Primary-DNS-Server
> 
> IN the dictionary
> 
> ATTRIBUTE	Cisco-Primary-DNS-Server	135	ipaddr
> 
> Am I forgetting something?
> 
> -- 
> 
> Peter Lindeman
> TPA traffic & parking automation bv
> 
> --
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