RFC 2008:Implications of Various Address Allocatio...
RFC-Ref

security polic


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... Renumbering a site has several possible implications on the security policies of both the site itself and sites that regularly communicate with the renumbering sites. ...
... It is highly inadvisable to rely upon unauthenticated source or destination IP addresses for security policy decisions. [Bellovin89] IP address ...
... firewall can rely on cryptographic techniques for identification when making its security policy decisions. ...



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