[Xorp-users] Problem in IPv6 SSM Multicast

[Pavlin Radoslavov]

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
show mld interface address
show mld group

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?

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.
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