Lengths

14 Sep 2005

      All,

In the standard header there is a code, Identifier, length and
authenticator fields.

For the length, is that the sum of all the vp->lengths + 20 for the
standard header.

My reason for this question is that I'm trying to rationalise an example
I've got. I.e. how do you get 164
See below:

Code                          =1

Identifier                    =1
Length                              =164
Authenticator                       = 56 7b e6 9a 8e 43 cf b6 fb a6 c0 f0
9a 92 6f 0e

                              These are standard header, therefore 164 - 20
= 144

Attributes:
                NAS-IP-Address            =d5 89 45 26
      4
                NAS-PORT-TYPE       =5 (virtual)
1
                User-Name                 ="12345678"
8
                Disgest-Response
="2ae133421cda65d67dc50d13ba0eb9bc" 32
                Digest-Attributes= Realm(1)     = "deltathree"
            10
                                   Nonce(2)           = "3bada1a0"
                  8
                                   Method(3)          = "INVITE"
            6
                                   URI(4)
= "sip:96226491335@213.137.69.38"         29
                                   Algorithm(5)       = "md5"
                  3
                                   User-Name(10)      = "12345678"
                  8

                                                      Equals = 109 (35 not
accounted for ?)

Ian Davies {02476 564662}
          Internal   (x740 4662)
IMS-SIPAC
Software Development Engineer

Lengths

Iandc Davies