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[neutron] OpenvSwitch firewall sctp getting dropped


I saw the counter is not 0. But no sctp conntrack module in my system. How
can i find it?


[root at compute02 ~]# ovs-ofctl dump-flows br-int | grep +inv

cookie=0x46c226b6d9a3ff8f, duration=229312.185s, table=72, n_packets=13,
n_bytes=1274, idle_age=65534, hard_age=65534, priority=50,ct_state=+inv+trk
actions=resubmit(,93)

cookie=0x46c226b6d9a3ff8f, duration=229312.186s, table=82, n_packets=2517,
n_bytes=925218, idle_age=65534, hard_age=65534,
priority=50,ct_state=+inv+trk actions=resubmit(,93)

[root at compute02 ~]#

[root at compute02 ~]#

[root at compute02 ~]# lsmod | grep sctp

[root at compute02 ~]#

[root at compute02 ~]#

[root at compute02 ~]# modprobe ip_conntrack_proto_sctp

modprobe: FATAL: Module ip_conntrack_proto_sctp not found.

[root at compute02 ~]#

[root at compute02 ~]# cat /etc/redhat-release CentOS Linux release 7.6.1810
(Core)

[root at compute02 ~]#

[root at compute02 ~]# uname -r

3.10.0-957.el7.x86_64

Vào Th 5, 8 thg 8, 2019 lúc 04:37 Jakub Libosvar <jlibosva at redhat.com> Ä?ã
viết:

> On 05/08/2019 12:01, thuanlk at viettel.com.vn wrote:
> > I have tried any version of OpenvSwitch but problem continue happened.
> > Is Openvswitch firewall support sctp?
>
> Yes, as long as you have sctp conntrack support in kernel. Can you paste
> output of 'ovs-ofctl dump-flows br-int | grep +inv' on the node where
> the VM using sctp is running? If the counters are not 0 it's likely that
> you're missing the sctp conntrack kernel module.
>
> Jakub
>
> >
> > Thanks and best regards !
> >
> > ---------------------------------------
> > LÄ?ng Khắc Thuận
> > OCS Cloud | OCS (VTTEK)
> > +(84)- 966463589
> >
> >
> > -----Original Message-----
> > From: Lang Khac Thuan [mailto:thuanlk at viettel.com.vn]
> > Sent: Tuesday, July 30, 2019 11:22 AM
> > To: 'smooney at redhat.com' <smooney at redhat.com>; '
> openstack-discuss at lists.openstack.org' <
> openstack-discuss at lists.openstack.org>
> > Subject: RE: [neutron] OpenvSwitch firewall sctp getting dropped
> >
> > I have tried config SCTP but nothing change!
> >
> > openstack security group rule create --ingress --remote-ip 0.0.0.0/0
> --protocol 132 --dst-port 2000:10000 --description "SCTP" sctp openstack
> security group rule create --egress --remote-ip 0.0.0.0/0 --protocol 132
> --dst-port 2000:10000 --description "SCTP" sctp
> >
> > Displaying 2 items
> > Direction     Ether Type      IP Protocol     Port Range      Remote IP
> Prefix        Remote Security Group   Actions
> > Egress        IPv4    132     2000 - 10000    0.0.0.0/0       -
> > Ingress       IPv4    132     2000 - 10000    0.0.0.0/0       -
> >
> >
> > Thanks and best regards !
> >
> > ---------------------------------------
> > LÄ?ng Khắc Thuận
> > OCS Cloud | OCS (VTTEK)
> > +(84)- 966463589
> >
> >
> > -----Original Message-----
> > From: smooney at redhat.com [mailto:smooney at redhat.com]
> > Sent: Tuesday, July 30, 2019 1:27 AM
> > To: thuanlk at viettel.com.vn; openstack-discuss at lists.openstack.org
> > Subject: Re: [neutron] OpenvSwitch firewall sctp getting dropped
> >
> > On Mon, 2019-07-29 at 22:38 +0700, thuanlk at viettel.com.vn wrote:
> >> I have installed Openstack Queens on CentOs 7 with OvS and I recently
> >> used the native openvswitch firewall to implement SecusiryGroup. The
> >> native OvS firewall seems to work just fine with TCP/UDP traffic but
> >> it does not forward any SCTP traffic going to the VMs no matter how I
> >> change the security groups, But it run if i disable port security
> >> completely or use iptables_hybrid firewall driver. What do I have to
> >> do to allow SCTP packets to reach the VMs?
> > the security groups api is a whitelist model so all traffic is droped by
> default.
> >
> > if you want to allow sctp you would ihave to create an new security
> group rule with ip_protocol set to the protocol number for sctp.
> >
> > e.g.
> > openstack security group rule create --protocol sctp ...
> >
> > im not sure if neutron support --dst-port for sctp but you can still
> filter on --remote-ip or --remote-group and can specify the rule as an
> --ingress or  --egress rule as normal.
> >
> >
> https://docs.openstack.org/python-openstackclient/stein/cli/command-objects/security-group-rule.html
> >
> > based on this commit
> https://github.com/openstack/neutron/commit/f711ad78c5c0af44318c6234957590c91592b984
> >
> > it looks like neutron now validates the prot ranges for sctp impligying
> it support setting them so i gues its just a gap in the documentation.
> >
> >
> >
> >>
> >
> >
>
>
> --
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