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Re: [radext] RDTLS #66 (new): NAT nits



Hi,

> #66: NAT nits
>
>  ''8.2. "Network Address Translation (NAT) is fundamentally incompatible
>  with RADIUS.  RADIUS uses the source IP address to determine the shared
>  secret for the client, and NAT hides many clients behind one source IP
>  address."''
>
>  There are no problems with full cone or ALGs acting as proxies.

Is that really true if DynAuth is concerned? A DynAuth packet needs to
reach the actual NAS. If there is >1 NAS behind any form of NAT, how
would the NAT ALG proxy figure out how to forward to which NAS?

Greetings,

Stefan Winter

>  Recommend:
>
>  Some forms of Network Address Translation (NAT) are incompatible with
>  RADIUS....
>


-- 
Stefan WINTER
Ingenieur de Recherche
Fondation RESTENA - RÃseau TÃlÃinformatique de l'Education Nationale et de la Recherche
6, rue Richard Coudenhove-Kalergi
L-1359 Luxembourg

Tel: +352 424409 1
Fax: +352 422473


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