On 5/26/2016 11:22 AM, Tom Herbert wrote: > On Thu, May 26, 2016 at 10:56 AM, Joe Touch <[email protected]> wrote: >> >> On 5/26/2016 10:52 AM, Tom Herbert wrote: >>> On Thu, May 26, 2016 at 10:41 AM, Joe Touch <[email protected]> wrote: >>>> Here's the problem: >>>> >>>> The first 4 bits are either part of the GUE header or IPv4 or IPv6. >>>> >>>> In the diagrams in draft-ietf-nvo3-gue and RFC791 they're indicated in the >>>> following bit order: 0,1,2,3 >>>> >>>> In GUE, these are 0,0,x,x >>>> >>>> In IPv4, these are 0,0,1,0 >>>> >>>> In IPv6, these are 0,1,1,0 >>>> >>> IPv4 is 0,1,0,0. >> Not LSB to MSB, which is how both GUE and RFC791 define the header: >> > >From RFC791: > > "Whenever an octet represents a numeric quantity the left most bit in > the diagram is the high order or most significant bit. That is, the > bit > labeled 0 is the most significant bit." Arrgh.
Yup. OK, so the reason this would work is only because we no longer use IP versions 0..3. Got it. Joe _______________________________________________ Int-area mailing list [email protected] https://www.ietf.org/mailman/listinfo/int-area
