[Help-gnu-radius] problem with gnu radius and Cisco CSS

[Mueller Thomas]

Hi,

I have a problem with gnu radius running on RedHat Linux and a Cisco Content
Switch.
The content switch is a kind of Loadbalancer. He changes the Source and
Destination IP of the packet.
The configuration is the following:

RADIUS CLIENT ----- Content Switch ----         Radius Server1
                                |---------      Radius Server2

I entered the IP of the content switch in the clients and in the NASlist
File.

I get the log entry:

Apr 08 13:09:16: [26231]: Login OK: address@hidden: CLID unknown (from nas
blabla)

in the radius.debug file.

The server seems to work correctly!

But no accept packet is sent by the server, back to the CSS.
We checked this with tcpdump and with an external sniffer!

Have anybody an idea what is wrong?

Best Regards
Thomas Mueller