[e2e] UDP length field

Greg Minshall minshall at redback.com
Mon Apr 16 15:43:31 PDT 2001


> 	3. in the case where IP options add trailers
> 		in this case, there is insufficient information in the IP_LEN
> 		and IP_HLEN fields to determine where the UDP data ends

foo.  if an IP option adds a trailer, it needs to give an indication of how to 
find that trailer, which is in "IP land", not "UDP/TCP/whatever land" (note 
that in rfc893, "how to find the trailer" is actually in "ethernet land"; that 
works, since rfc893 is effectively describing an ethernet option that adds a 

cheers, Greg Minshall

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