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[SCTP-Discussion] Multihoming


Chronological Thread 
  • From: <DTepelmann AT web.de>
  • To: discussion AT sctp.de
  • Subject: [SCTP-Discussion] Multihoming
  • Date: Wed May 12 20:57:00 2004
  • List-id: SCTP Discussions <discussion.sctp.de>
  • Organization: http://freemail.web.de/

Hi,

I got to a point where I'm get confused. Hope you can help.

I have adjust a second IP address for eth0 in
/etc/sysconfig/network/ifcfg-eth0:
...
BROADCAST='192.168.89.255'
IPADDR='192.168.89.84'
NETMASK='255.255.255.0'
IPADDR2='192.168.89.22'
NETMASK2='255.255.255.0'
NETWORK='192.168.89.0'

So I'm able to connect to my machine with 192.168.89.84 or with
192.168.89.22. It's working fine.
Reason of this was to test several SCTP association between 2 SCTP instances
on to different machines. But I got in trouble. All packets(INIT's) send to
x.x.x.22 will replied via x.x.x.84, which causes an SCTP Abort at the
initiator side.
This behaviour can easyly reproduced with mini_ulp(./mulp -s 192.168.89.70 -l
10002 -d 192.168.89.22 -r 7) vs. echo_server(./echo_server -s 192.168.89.22
-V).

How is it handled in sctplib, or is it a bug? Something wrong on my side? How
it's possible to handle more than one local address?

Thanks in advance,

DTepelmann

PS: Both machines have the following OS:
Linux 2.4.21-99-athlon #1 Wed Sep 24 13:34:32 UTC 2003 i686 athlon i386
GNU/Linux
sctplib-1.0.1
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