nanog mailing list archives

Re: IP over SONET considered harmful?


From: Alan Hannan <alan () globalcenter net>
Date: Fri, 20 Mar 1998 09:55:01 -0800


  I consider Windows 95 to be the least common denominator,
  which has a default IP TTL of 32.  Yes, 32.  So that implies
  that each NSP should decrement no less than 8 TTLs.

That's broken. 

  Well, perhaps, but my wording certainly is; of course I mean 'no
  more than 8 TTLs'.

I quote from RFC 1340, dated July 1992:

   The current recommended default time to live (TTL) for the Internet
   Protocol (IP) [45,105] is 64.

This does not change reality, of course, but it also does not
make it less broken.

  Arguable; not following a recommendation is not broken.  It's just
  dumb.

  I'd like to see IETF make 64 a requirement or standard.  But of
  course that is painful.

  -a



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