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Dear all,

the problem is that the IP-layer inserts the source address of the IP-packet.
This is done by the kernel normally by using the forwarding table.

This is why I allways say that you can use only a subset of IP-addresses but
you have to make sure that the IP forwarind is in tune with your
configuration.

Please keep also in mind that the meaning of 'in tune' depends on the used OS.
If have configurations that work with FreeBSD and not with Linux.

We can, of course, add this statement also in the manual.

Best reagards
Michael
--
e-mail:
Michael.Tuexen AT micmac.franken.de

On Fri, Jun 8, 2001, Krupp Johannes ICM N MC MI E6
<Johannes.Krupp AT icn.siemens.de>
wrote:

>Hi Andreas,
>
>only one question for understanding :
>
>What is the reason for the SCTP-ULP to register with local adresses, if all
>adddresses of an interface are to be specified ??? Before reading your
>statement I thought that it migth be allowed to specify a subset of the
>addresses (for any reason).
>
>
>Mit freundlichen Grüßen / Kind regards
>
>Johannes Krupp
>
>______________________________________________________________
>
>SIEMENS Siemens AG
>
> Information and Communication mobile
> Networks
>
> Tel: +49 89 722 57509
>Johannes Krupp Fax: +49 89 722 57506
>Mobile Internet E-Mail:
>Johannes.Krupp AT icn.siemens.de
>______________________________________________________________
>
>
>
>
>> -----Ursprüngliche Nachricht-----
>> Von: Andreas Jungmaier
>> [mailto:ajung AT exp-math.uni-essen.de]
>> Gesendet: Freitag, 8. Juni 2001 00:39
>> An:
>> discussion AT sctp.de;
>> Held Martin ICM N MC MI E6
>> Betreff: Re: [SCTP-Discussion] problem when establishing association
>> with -pre11
>>
>>
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> Martin, all,
>>
>> you must make sure, that you specify all IPv6 adresses, that
>> are assigned to your
>> interface....else it will look like OOTB, and be ignored.
>> What are the exact commands you typed in on the client and
>> the server ?
>> What are the respective adress configurations (from ifconfig).
>> What is the LAN topology you used for testing ?
>>
>> Regards, Andreas
>>
>> > peer A sending INIT:
>> > ==============
>> > Execute command ConnReq
>> > InstanceID=2
>> > 10:40:33.284 - Event in Module: distribution.c............
>> > 10:40:33.284 - sctp_associate called
>> > 10:40:33.284 - Looking for SCTP Instance 1 in the list
>> > 10:40:33.285 - Chose local port 10500 for associate !
>> > 10:40:33.285 - mdi_newAssociation: Instance: 1, local port 10500,
>> > rem.port: 10500, local tag: 64948532, primary: 0
>> >
>> > peer B receiving INIT, sending ABORT:
>> > ============================
>> > 09:41:01.809 - Event in Module: adaptation.c............
>> > 09:41:01.810 - ############### 1 Read Event(s) occurred ->
>> > dispatch_event()#############
>> > 09:41:01.810 - SCTP-Message on socket 4 , len=40, portnum=0
>> > 09:41:01.811 - TODO: check or change function for IPv6
>> address conversion !
>> > 09:41:01.811 - IPv6/SCTP-Message from
>> 3ffe:400:350:1866:172:16:161:2 (40
>> > bytes) -> activating callback
>> > 09:41:01.811 - DEBUG Validation : old_crc32 == 518b04ca
>> > 09:41:01.811 - DEBUG Validation : adler32 == 518b04ca
>> > 09:41:01.811 - mdi_receiveMessage: checking for correct
>> IPV6 addresses
>> > 09:41:01.811 - TODO: check or change function for IPv6
>> address conversion !
>> > 09:41:01.811 - TODO: check or change function for IPv6
>> address conversion !
>> > 09:41:01.811 - Event in Module: distribution.c............
>> > 09:41:01.811 - mdi_receiveMessage : len 40, sourceaddress :
>> > 3ffe:400:350:1866:172:16:161:2, src_port 10500,dest:
>> > f1f1:bfbf:300:0:f3f1:bfbf:100:0, dest_port 10500
>> > 09:41:01.811 - DEBUG: CheckForAddressInInstance, comparing
>> instance a port
>> > 10500, instance b port 10500
>> > 09:41:01.811 - DEBUG: CheckForAddressInInstance, acount 0,
>> bcount 0, found
>> > = FALSE
>> > 09:41:01.811 - Couldn't find SCTP Instance for Port 10500 in List !
>> > ...
>> > 09:41:01.823 - mdi_receiveMsg: sending ABORT with T-Bit
>> >
>> > peer B receiving ABORT:
>> > ==================
>> > 10:40:33.306 - Event in Module: adaptation.c............
>> > 10:40:33.306 - ############### 1 Read Event(s) occurred ->
>> > dispatch_event()#############
>> > 10:40:33.306 - SCTP-Message on socket 4 , len=16, portnum=0
>> > 10:40:33.306 - TODO: check or change function for IPv6
>> address conversion !
>> > 10:40:33.307 - IPv6/SCTP-Message from
>> 3ffe:400:350:1866:172:16:161:3 (16
>> > bytes) -> activating callback
>> > 10:40:33.307 - DEBUG Validation : old_crc32 == 11540185
>> > 10:40:33.308 - DEBUG Validation : adler32 == 11540185
>> > 10:40:33.308 - mdi_receiveMessage: checking for correct
>> IPV6 addresses
>> > 10:40:33.308 - TODO: check or change function for IPv6
>> address conversion !
>> > 10:40:33.308 - TODO: check or change function for IPv6
>> address conversion !
>> > 10:40:33.308 - Event in Module: distribution.c............
>> > 10:40:33.308 - mdi_receiveMessage : len 16, sourceaddress :
>> > 3ffe:400:350:1866:172:16:161:3, src_port 10500,dest:
>> > f1f1:bfbf:300:0:b0f2:bfbf::, dest_port 10500
>> > 10:40:33.308 - DEBUG: CheckForAddressInInstance, comparing
>> instance a port
>> > 10500, instance b port 10500
>> > 10:40:33.308 - DEBUG: CheckForAddressInInstance, acount 0,
>> bcount 0, found
>> > = FALSE
>> > 10:40:33.308 - Couldn't find SCTP Instance for Port 10500 in List !
>> >
>> >
>> > ------------------------------------------------------------
>> > Martin Held Hofmannstr. 51, 81359 Muenchen, Germany
>> > Siemens AG phone +49 89 722 37386
>> > ICM N MC MI E6 fax +49 89 722 57506
>> > Mobile Internet
>> > mailto:Martin.Held AT icn.siemens.de
>> >
>> > _______________________________________________
>> > discussion mailing list
>> > discussion AT sctp.de
>> > http://www.sctp.de/mailman/listinfo/discussion
>>
>> - --
>>
>> Andreas Jungmaier
>>
>> -
>> --------------------------------------------------------------
>> --------------
>> \|/ _____ \|/ Andreas Jungmaier, Dipl.-Ing.
>> "@'/ , . \`@" University of Essen
>> ajung AT exp-math.uni-essen.de
>> /_| \___/ |__\ -> Computer Networking Tel. : +49
>> (0201) 183-7636
>> \___U_/ Technology Group <-
>> -
>> --------------------------------------------------------------
>> --------------
>> PGP Public Key and Fingerprint: see
>> http://www.exp-math.uni-essen.de/~ajung
>> -
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• AW: [SCTP-Discussion] problem when establishing association with -pre11, Krupp Johannes ICM N MC MI E6, 06/08/2001
  • Re: AW: [SCTP-Discussion] problem when establishing association with -pre11, Michael Tüxen, 06/08/2001

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