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Posted by on April 1, 2007, 6:10 am
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>
>
>
> > saju...@gmail.com wrote:
> > >I was going through the RFC2960 for SIGTRAN.During an association
> > >startup , how does it identify a destination .There's a destination
> > >port number in the SCTP common header .But where is the destination IP
> > >address ?
>
> > In the IP-Header "under" the SCTP-Packet, or in the Init-Message:
> > Section 3.3.2.1 "Optional/Variable Length Parameters in INIT" in RFC
> > 2960:
>
> > +++++++++++
> > If the INIT contains at least one IP Address parameter, then the
> > source address of the IP datagram containing the INIT chunk and
> > any additional address(es) provided within the INIT can be used as
> > destinations by the endpoint receiving the INIT. If the INIT does
> > not contain any IP Address parameters, the endpoint receiving the
> > INIT MUST use the source address associated with the received IP
> > datagram as its sole destination address for the association.
> > +++++++++++
>
> Thanks for that ,
> but this is for the receiver to identify the source which has sent
> the INIT chunk .
> How does the sender know to which IP address it should send this INIT
> request ?
I think i got it ...the destination IP address is specified by the
SCTP users like SUA ...in the CLDT message of SUA , there 's a
destination address field .So when SCTP gets this message , it will
make an INIT chunk and then sent to the IP layer , where an IP packet
is made after taking the IP address from the SUA packet .
Can any one cofirm this explanation ?
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