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The Status for IPv4: Underlying Problems The RAO object has a value field but no assignment mechanism defined in RFC2113 The semantics of the option are exceptionally vaguely defined Hosts shall ignore this option. Routers that do not recognize this option shall ignore it. Routers that recognize this option shall examine packets carrying it more closely (check the IP Protocol field, for example) to determine whether or not further processing is necessary. Unrecognized value fields shall be silently ignored. The semantics of other values in the Value field are for further study. This could mean many things … There is a bigger installed base to cope with The problems come when GIST packets hit this installed base |