Protocol not supported
Dear Forum,
I am using Centos-5.6 in VirtualBox uner Windows7. I have installed it several times using different combinations (linux text, linux vesa=1024x768), with /without Gnome Desktop, using Development Tools and Libraries, Graphics Internet etc.. I found that one or two installations show that sctp can be loaded via modprobe, otherwise I get Protocol family not supported when I use lksctp-tools. I have used in fresh installations: 1. firewall enabled, SELinux=Permissive 2. yum install lksctp-tools 3. locate sctp.ko (gives presence output) 3. modprobe sctp 4. /usr/bin/checksctp I am working on SS7 project. Help will be greatly appreciated. |
Quote:
try: - yum install lksctp-tools - modinfo sctp - modprobe sctp - lsmod | grep sctp - /usr/bin/checksctp Let us know where you receive an error message |
Protocol not supported
Dear,
there are some improvements, let me tell first. I updated /etc/sysconfig/network with IPV6=yes /etc/sysconfig/network-script/ifcfg-eth0 with IPV6INIT=yes, IPV6AUTOCONF=yes /etc/modprobe.conf with on in the relevant protol alias lines. .. now I can modprobe sctp fine. After installing lksctp-tools via yum, I get /usr/bin/checksctp, sctp_test etc. ./checksctp gives: SCTP supported when I use sctp_test -H192.168.56.2 -P 3565 -h 192.168.56.1 -p 3565 -s I get error: Starting tests... socket(SOCK_SEQPACKET, IPPROTO_SCTP) -> sk=3 SCTP_EVENTS: error: -1 and I confirm that there is no transmision on eth0 Please give me solution (I am using CentOS-5.6) |
So did you set up one machine as a server:
Code:
sctp_test -H 192.168.56.1 -P 3565 -l Code:
sctp_test -H 192.168.56.2 -P 3565 -h 192.168.56.1 -p 3565 -s |
SCTP connection in CentOS
Surely, there will be two signaling points (SIGTRAN)
but at this moment I am unable to transmit anything over SCTP via LKSCTP. my kernel 2.6.18-238 has built in SCTP support, verified by /usr/bin/checksctp utility modprobe sctp gives no errors /sbin/lsmod | grep sctp gives: sctp 151449 2 [unsafe] ipv6 270049 17 sctp, ip6t_REJECT,cnic now executing client test utility /usr/bin/sctp_test: sctp_test -H192.168.56.2 -P3565 -h192.168.56.1 -p3565 -s remote:addr=192.168.56.1, port=m2pa, family=2 local:addr=192.168.56.2, port=m2pa, family=2 seed= 1308306117 Starting tests.. socket(SOCK_SEQPACKET, IPROTO_SCTP) -> sk=3 SCTP_EVENTS: error: -1 please tell me how can i resolve this problem, Thanks. |
Did you start sctp_test as a server on 192.168.56.1 first ?
|
Yes, I run on either side (as client or as server) both commands fail
giving the same error socket(..... ) -> sk=3 SCTP_EVENTS: error: -1 |
Hope you got it working if not and for anyone else who is facing the same issue.
I had the same issue every time I tried to do the test I got the same error. What I did was I downgraded the lksctp version to lksctp-tools-1.0.6-3.el5 and it worked perfectly I think there is a version conflict between the kernel and the new lksctp version or you could try to upgrade the kernel version ;) |
LKSCTP over CENTOS
Dear jasondevj
Thank you very very much, you solved my very old problem that i put under the large heap. You may be right, it is some problem with version. any way lksctp-tools-1.0.6-3.el5 is working as far as checksctp is working in client/server configuration. I will inform as i go for SS7-sigtran testing using lksctp. Regards Masood |
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