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Hi,

see my comments in-line.

Best regards
Michael

Michael Tuexen Tel.: +49 89 722 47210
Siemens AG Fax: +49 89 722 48212
ICN WN CC SE 7 E-mail:
Michael.Tuexen AT icn.siemens.de

> -----Original Message-----
> From: Masaki Tamura
> [SMTP:m_tamu AT ncos.nec.co.jp]
> Sent: Friday, May 24, 2002 12:09 PM
> To:
> discussion AT sctp.de
> Subject: [SCTP-Discussion] Can two or more SCTP associations be
> established by one host?
>
> Hello.
>
> I want establish SCTP associations between one host and many host.
>
> Can two or more SCTP associations be established by one host?
[Tuexen Michael] Of course.
> [fig1] is my Examination environment.
> host1 has two NIC, I want establish SCTP associations between host1 and
> host2,host3 at the same time.
> host1 to host2 SCTP associations is establish.
> but host1 to host3 SCTP associations is not establish.
> Are these phenomenons Specification of SCTP?
>
[Tuexen Michael] Your problems are related to the IP setup, not
really
to SCTP. If you register instances on host 1 with only 1 IP address
YOU
have to make sure that your IP layer uses the correct addresses. From
what
you have written this is not the case.

Host 1 has two interfaces in the same LAN. So if you send IP packets
to host2 or host3, which are also in that LAN, they will have the same
source address and will use the same outgoing interface. It seems to
be the one for 10.1.158.60. The specifics even depend on the OS you
are using.

The solution: regsiter both IP addresses on host1.

Best regards
Michael
>
> ----- [fig1] ---------------------------
>
> subnetmask(255.0.0.0)
> +-----+ +-----+
> | |10.1.158.60----10.1.86.129|host2|
> | | +-----+
> |host1|
> | | +-----+
> | |10.1.86.4 ----10.1.86.226|host3|
> +-----+ +-----+
>
> *I don't use Secondary IP address
>
> 10.1.158.60----10.1.86.129 OK
> 10.1.86.4 ----10.1.86.226 NG
>
> ----------------------------------------
> *****************************************
> Masaki Tamura
>
> E-Mail :
> m_tamu AT ncos.nec.co.jp
>
> *****************************************
>
> _______________________________________________
> discussion mailing list
> discussion AT sctp.de
> http://www.sctp.de/mailman/listinfo/discussion

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• RE: [SCTP-Discussion] Can two or more SCTP associations be establ ished by one host?, Tuexen Michael, 05/24/2002

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