On 07/16/2012 09:24 PM, Joe Stringer wrote: > Hi there, > > I've come across an issue when trying to use SCTP with lxc, and I > wonder if anyone might have some insight into what's causing this. > > My set up has two lxc hosts connected to an instance of Open vSwitch, > vm0 and vm1. When I attempt to use the sctp_test utility that comes > with the debian package lksctp-tools from within either VM, it reports > back that the address family is not supported:- > > > root@vm0:~# sctp_test -H 0 -P 250 -l > local:addr=0.0.0.0, port=250, family=2 > seed = 1342081047 > > Starting tests... > socket(SOCK_SEQPACKET, IPPROTO_SCTP) > > *** socket: failed to create socket: Address family > not supported by protocol *** > > > The interfaces appear to be set up fine, I can ping from one vm to the > other with no trouble. The host can successfully run the above command > as well. > > Is this because of socket using SOCK_SEQPACKET? > > Cheers, > Joe
It's not easy to tell whether it's the case here, but some protocols require extra kernel modules to work properly. On a regular system these modules are loaded dynamically the first time you try to create a socket of that type, but in a container, it typically won't work. If that's the case, check on a regular system what the modules are and load them on your host, then try again from the container. -- Stéphane Graber Ubuntu developer http://www.ubuntu.com
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