[Xorp-users] Fwd: Problem in IPv6 SSM Multicast
Hansi
hantongs at gmail.com
Tue Dec 4 01:37:14 PST 2007
copying the mail list. :)
Hello Pavlin,
Thank you for the quick response. I intentionally did not add the mld
configuration in Router 1 specifically because my understanding on the MLD
as well as the IGMP protocol is that both are only intended for multicast
routers to receivers communication. Please don't hesitate to correct me if
I'm wrong.
After adding MLD to the router1 xorp configuration:
admin at demo_rtr1> show mld interface
Interface State Querier Timeout Version Groups
sk0 UP fe80::219:5bff:fe2f:146a None 2 8
vr0 DISABLED fe80::215:f2ff:fe3d:ac91 None 1 0
Furthermore, I also happen to see these logs in stdout:
[ 2007/12/04 05:26:47 WARNING xorp_fea FEA ] proto_socket_read() failed: RX
packet from ::1 to ::1 pif_index 4: no vif found
[ 2007/12/04 05:26:47 WARNING xorp_fea FEA ] proto_socket_read() failed: RX
packet from ::1 to ::1 pif_index 4: no vif found
[ 2007/12/04 05:26:47 WARNING xorp_fea FEA ] proto_socket_read() failed: RX
packet from ::1 to ::1 pif_index 4: no vif found
[ 2007/12/04 05:28:39 WARNING xorp_fea FEA ] proto_socket_read() failed: RX
packet from ::1 to ::1 pif_index 4: no vif found
[ 2007/12/04 05:28:39 WARNING xorp_fea FEA ] proto_socket_read() failed: RX
packet from ::1 to ::1 pif_index 4: no vif found
[ 2007/12/04 05:28:39 WARNING xorp_fea FEA ] proto_socket_read() failed: RX
packet from ::1 to ::1 pif_index 4: no vif found
[ 2007/12/04 05:28:39 WARNING xorp_fea FEA ] proto_socket_read() failed: RX
packet from ::1 to ::1 pif_index 4: no vif found
[ 2007/12/04 05:28:39 WARNING xorp_fea FEA ] proto_socket_read() failed: RX
packet from ::1 to ::1 pif_index 4: no vif found
[ 2007/12/04 05:28:39 WARNING xorp_fea FEA ] proto_socket_read() failed: RX
packet from ::1 to ::1 pif_index 4: no vif found
On Dec 4, 2007 5:00 PM, Pavlin Radoslavov <pavlin at icir.org> wrote:
> Router 1 is missing the "mld" configuration.
>
> After you add it, please send the output of the following commands
> when running them on the router directly connected to the receiver:
>
> show mld interface
Interface State Querier Timeout Version Groups
sk0 UP fe80::219:5bff:fe85:cfc7 None 2 7
vr0 DISABLED fe80::213:d4ff:fed8:6808 None 1 0
>
> show mld interface address
Interface PrimaryAddr SecondaryAddr
sk0 fe80::219:5bff:fe85:cfc7 2001:ec1:4001:10af::1
vr0 fe80::213:d4ff:fed8:6808 2001:ec0:4000:beef::1
>
> show mld group
Interface Group Source LastReported Timeout V State
sk0 ff02::2 :: fe80::219:5bff:fe85:cfc7
243 1 E
sk0 ff02::d :: fe80::219:5bff:fe85:cfc7
243 1 E
sk0 ff02::16 :: fe80::219:5bff:fe85:cfc7
243 1 E
sk0 ff02::1:ff00:1 :: fe80::219:5bff:fe85:cfc7
243 1 E
sk0 ff02::1:ff2f:1468 :: fe80::219:5bff:fe2f:1468
248 2 E
sk0 ff02::1:ff85:cfc7 :: fe80::219:5bff:fe85:cfc7
243 1 E
sk0 ff02::2:15ba:6cf7 :: fe80::219:5bff:fe85:cfc7
243 1 E
>
>
> Also, what do you mean by:
> "there are no "Join" messages sent out from the client side"
>
> Do you mean that the client/receiver host didn't send MLDv2 Join, or
> that the Router connected to it didn't send PIM-SSM Join toward the
> sender?
>
I was referring to the client/receiver host not sending an MLDv2 Join (upon
entering the (S,G) parameters and pressing OK) to the upstream router
connected to it.
>
> Regards,
> Pavlin
>
> Hansi < hantongs at gmail.com> wrote:
>
> > Hello All,
> >
> > I'm currently exploring ipv6 multicast specifically pim-ssm. The network
> > topology setup I have is shown below:
> >
> > +----------+ +----------+
> > | Source/ +---------------------+ |
> > | Sender | sk0 | Router 1 |
> > +----------+ +-----+----+
> > | vr0
> > |
> > |
> > |
> > |
> > |
> > | vr0
> > +----------+ +-----+----+
> > | Client/ +---------------------+ |
> > | Receiver | sk0 | Router 2 |
> > +----------+ +----------+
> >
> >
> >
> > Details:
> >
> > Source
> > OS: FreeBSD 6.2
> > Streaming Server: vlc-0.8.6_c
> > sis1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> > options=8<VLAN_MTU>
> > inet6 fe80::200:24ff:fec4:3235%sis1 prefixlen 64 scopeid 0x2
> > inet 192.168.0.2 netmask 0xffffff00 broadcast 192.168.0.255
> > inet6 2001:ec2:4002:fa11:200:24ff:fec4:3235 prefixlen 64
> autoconf
> > ether 00:00:24:c4:32:35
> > media: Ethernet autoselect (100baseTX <full-duplex>)
> >
> > Router 1
> > OS: FreeBSD 6.2
> > sk0: flags=8a43<UP,BROADCAST,RUNNING,ALLMULTI,SIMPLEX,MULTICAST> mtu
> 1500
> > options=b<RXCSUM,TXCSUM,VLAN_MTU>
> > inet6 fe80::219:5bff:fe2f:146a%sk0 prefixlen 64 scopeid 0x1
> > inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255
> > inet6 2001:ec2:4002:fa11::1 prefixlen 64
> > ether 00:19:5b:2f:14:6a
> > media: Ethernet autoselect (100baseTX <full-duplex,flag0,flag1>)
>
> > status: active
> > vr0: flags=8a43<UP,BROADCAST,RUNNING,ALLMULTI,SIMPLEX,MULTICAST> mtu
> 1500
> > inet6 fe80::215:f2ff:fe3d:ac91%vr0 prefixlen 64 scopeid 0x2
> > inet 200.10.0.2 netmask 0xffffff00 broadcast 200.10.0.255
> > inet6 2001:ec0:4000:beef::2 prefixlen 64
> > ether 00:15:f2:3d:ac:91
> > media: Ethernet autoselect (100baseTX <full-duplex>)
> > status: active
> >
> > Router 2
> > OS: FreeBSD 6.2
> > sk0: flags=8a43<UP,BROADCAST,RUNNING,ALLMULTI,SIMPLEX,MULTICAST> mtu
> 1500
> > options=b<RXCSUM,TXCSUM,VLAN_MTU>
> > inet6 fe80::219:5bff:fe85:cfc7%sk0 prefixlen 64 scopeid 0x1
> > inet 172.16.0.1 netmask 0xffff0000 broadcast 172.16.255.255
> > inet6 2001:ec1:4001:10af::1 prefixlen 64
> > ether 00:19:5b:85:cf:c7
> > media: Ethernet autoselect (1000baseTX
> <full-duplex,flag0,flag1>)
> > status: active
> > vr0: flags=8a43<UP,BROADCAST,RUNNING,ALLMULTI,SIMPLEX,MULTICAST> mtu
> 1500
> > inet6 fe80::213:d4ff:fed8:6808%vr0 prefixlen 64 scopeid 0x2
> > inet 200.10.0.1 netmask 0xffffff00 broadcast 200.10.0.255
> > inet6 2001:ec0:4000:beef::1 prefixlen 64
> > ether 00:13:d4:d8:68:08
> > media: Ethernet autoselect (100baseTX <full-duplex>)
> > status: active
> >
> > Client
> > OS: Linux Ubuntu Fiesty Fawn 7.04 2.6.20-16-generic
> > Streaming Client: vlc-0.8.6_c
> > eth0 Link encap:Ethernet HWaddr 00:19:5B:2F:14:68
> > inet addr:172.16.0.2 Bcast:172.16.255.255 Mask:255.255.0.0
> > inet6 addr: 2001:ec1:4001:10af:219:5bff:fe2f:1468/64
> Scope:Global
> > inet6 addr: fe80::219:5bff:fe2f:1468/64 Scope:Link
> > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> > RX packets:71141 errors:0 dropped:0 overruns:0 frame:0
> > TX packets:103425 errors:0 dropped:0 overruns:0 carrier:0
> > collisions:0 txqueuelen:1000
> > RX bytes:6304908 ( 6.0 MiB) TX bytes:137947821 (131.5 MiB)
> > Interrupt:17
> >
> >
> > The problem is that I can't seem to recieve multicast streams from the
> > streaming server. :( I haven't encountered issues w/ regards to ipv4 ssm
>
> > multicast. The syntax used for the vlc streaming server is: vlc -vvv
> > video.xyz - -ipv6 - -sout udp:[ff3e::1234] - -ttl 12. I also tried
> placing a
> > backslash (\) character before each bracket but to no avail. I
> configured
> > the client through vlc's graphical interface with
> > udp://[2001:ec2:4002:fa11:200:24ff:fec4:3235]@[ff3e::1234].
> > What I came to notice though is that there are no "Join" messages sent
> out
> > from the client side to indicate that it intends to join a channel, in
> this
> > case (2001:ec2:4002:fa11:200:24ff:fec4:3235, ff3e::1234). I suspect that
> the
> > it could be the client not initiating any "join" activity to a multicast
>
> > group although I can't also rule out that I overlooked something in my
> XORP
> > configuration file. I would appreciate if someone could lend me a hand
> here.
> >
> > Attached is my xorp config file.
> >
> > Thanks.
> > _______________________________________________
> > Xorp-users mailing list
> > Xorp-users at xorp.org
> > http://mailman.ICSI.Berkeley.EDU/mailman/listinfo/xorp-users
>
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