Ignore it, and then generate a proper response as if the Date header
were not present in the reqeuest. 

The spec advises this for proxies already, see section 16.3 which
explicitly uses Date as the example:

1. Reasonable syntax check 2478
The request MUST be well-formed enough to be handled with a server
transaction. Any components 2479
involved in the remainder of these Request Validation steps or the
Request Forwarding section MUST 2480
be well-formed. Any other components, well-formed or not, SHOULD be
ignored and remain un- 2481
changed when the message is forwarded. For instance, an element would
not reject a request because 2482
of a malformed Date header field. Likewise, a proxy would not remove a
malformed Date header 2483
field before forwarding a request. 2484


However, the general guidance there is good, and it follows the "be
conservative with what you send, liberal in what you can receive"
guideline for all IETF protocols.

-Jonathan R.


Neumaerker Elke wrote:
> 
> Hi all,
> 
> According to bis09  "the response SHOULD include a Date header field".
> 
> How should be the reaction of a Registrar, if it detects a malformed
> Date-header in the REGISTER-request ?
> 
> (1) Ignore it and insert a correct Date-header in  the REGISTER-response
> ?
> 
> (2) Ignore it and return the malformed header ?
> 
> (3) Reject the REGISTER with 400 Bad Request ?
> 
> 
> Thanks for your time,
> Elke
> 
> _____________________________________
> Email : [EMAIL PROTECTED]
> 
> _______________________________________________
> Sip-implementors mailing list
> [EMAIL PROTECTED]
> http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors

-- 
Jonathan D. Rosenberg, Ph.D.            72 Eagle Rock Avenue
Chief Scientist                         First Floor
dynamicsoft                             East Hanover, NJ 07936
[EMAIL PROTECTED]                 FAX: (973) 952-5050
http://www.jdrosen.net                  PH:  (973) 952-5000
http://www.dynamicsoft.com
_______________________________________________
Sip-implementors mailing list
[EMAIL PROTECTED]
http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors

Reply via email to