Swamy,

AFAIK - yes, since UDP is a connectionless protocol, the state table
information cannot be as complete as with TCP (no handshake, etc...).

Thanks!
Chris


Chris Hastings, CCSA, CCSE
Brainbench MVP for Internet Security
http://www.brainbench.com



                                                                                       
                                                              
                    "Swamy Patil"                                                      
                                                              
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                    Sent by:                    cc:                                    
                                                              
                    firewalls-owner@List        Subject:     stateful inspection       
                                                              
                    s.GNAC.NET                                                         
                                                              
                                                                                       
                                                              
                                                                                       
                                                              
                    04/19/2001 09:58 AM                                                
                                                              
                                                                                       
                                                              
                                                                                       
                                                              


can any one answer this question about stateful inspection

State tables are maintained and checked against SYN,FIN,ACK etc..  but what
about UDP does it just check against rule base and then give a green
orredsignal based on the rule base itself?

ThanQ all those giving the reply for earlier mail



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