Hi Ron,
Your guess is wrong. Please read the sentence right after the one you quote.
"The effective next-header (ENH) is the next-header field of the IP
header when no SRH is present, or is the next-header field of the
last SRH.
In this version of the document, we assume that there are no other
extension headers than the SRH. These will be lifted in future
versions of the document."
As said in the note, as part of the work on this draft we will update the
pseudocodes to get better alignment with SRH draft, removing the stated
limitations. For simplicity we did not add them in previous revisions of the
draft.
Thanks,
Pablo.
-----Original Message-----
From: ipv6 <ipv6-boun...@ietf.org> on behalf of Ron Bonica
<rbonica=40juniper....@dmarc.ietf.org>
Date: Monday, 6 May 2019 at 03:05
To: SPRING WG <spring@ietf.org>, 6man WG <i...@ietf.org>
Subject: SRv6 Network Programming: More Headers
Folks,
In draft-ietf-spring-srv6-network-programming, can a packet that is
destined for an End.DX4 SID contain a Fragment header? An Authentication
header? An Encapsulating Security Payload header? A Destination Options header?
My initial guess is that it cannot. According to the draft:
"The effective next-header (ENH) is the next-header field of the IP header
when no SRH is present, or is the next-header field of the last SRH"
Also, according to Section 4.9 of the draft, the packet will be dropped if
the Effective Next Header is not equal to 4 (IPv4).
Do I have this right?
Ron
Juniper Internal
--------------------------------------------------------------------
IETF IPv6 working group mailing list
i...@ietf.org
Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
--------------------------------------------------------------------
_______________________________________________
spring mailing list
spring@ietf.org
https://www.ietf.org/mailman/listinfo/spring
