multiple NAS behind multiple NAT with one radius server.

[甄鹏]

Hello Everybody:
  Recently I am working on a project, it requires a radius server(which i use freeradius for sure) that could be shared by multiple NASes which are behind multiple NAT.(one NAS to one NAT)
  But not really easy for me, i have the following problem.
  I use freeradius+mysql, for the radius.nas table,it requires nasname which must be(？) the IP address of the NAS,but NAS only have a private IP address like 192.168.***.***，i know after through the NAT,it will get a public IP address, but the IP address is dynamics,so How could I set up the nasname for radius.nas table??? I read the clients.conf file, it said the nasname could be a hostname,but it also said the radius server will only inquire the DNS server for one time,so what will happen if the router of NAT rebooted and got a different IP address??
 Is there anyway could solve my problems?
 Right now,what i am doing is I said the nasname as 0.0.0.0 and netmask 0 (in clients.conf),two different NAS could be connect to the radius server? is this a solution?
 Thank you in advanced. 		 	   		  
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