[Xorp-users] help please my multicasting is not working

[GDS.Marshall]

I have read the xorp documentation (including that on multicasting), I
have looked at the example configuration for multicasting, I have googled
till the cows come home, I have read the mailing list, even back as far as
2005, but for the life of me I can not get this working.

Would anyone have any suggestions on what to check or change etc. please?

ISP ---- cisco 1700 ---- linux xorp ---- LAN
        DSL        ^     ^         ^        ^
       82.70.154.150     |    192.168.4.3   192.168.4.0/24
                 82.70.154.145

on the cisco 1700 if I do an mtrace, it succeeds.
mtrace 81.20.48.1 82.70.154.145 233.153.34.2
Type escape sequence to abort.
Mtrace from 81.20.48.1 to 82.70.154.145 via group 233.153.34.2
>From source (master1.gcapmedia.net) to destination (ns0.dalmany.co.uk)
Querying full reverse path...
 0  spitfire.tgfslp.dalmany.co.uk (82.70.154.145)
-1  gatekeeper.dalmany.co.uk (82.70.154.150) PIM  [default]
-2  master1.gcapmedia.net (81.20.48.1)

If I run mtrace from a laptop on the 192.168.4.0/24 network
/usr/local/bin/mtrace 81.20.48.1 192.168.4.50 233.153.34.2
Mtrace from 81.20.48.1 to 192.168.4.50 via group 233.153.34.2
Querying full reverse path... * switching to hop-by-hop:
  0  hp-laptop.local (192.168.4.50)
 -1  * * *
 -2  * * *
 -3  * * *
 -4  * * * ...giving up
Timed out receiving responses
Perhaps no local router has a route for source 81.20.48.1

but if I look in xorp, it does
xorpsh> show route table ipv4 multicast final
0.0.0.0/0       [fib2mrib(254)/65535]
                > to 82.70.154.150 via eth1/eth1
192.168.4.0/24  [connected(0)/0]
                > via eth0/eth0
82.70.154.144/29        [connected(0)/0]
                > via eth1/eth1

next I tried mtrace from the outside interface of the linux xorp
/usr/local/bin/mtrace 81.20.48.1 82.70.154.145 233.153.34.2
Mtrace from 81.20.48.1 to 82.70.154.145 via group 233.153.34.2
Querying full reverse path... * switching to hop-by-hop:
  0  spitfire.tgfslp.dalmany.co.uk (82.70.154.145)
 -1  * * *
 -2  * * *
 -3  * * *
 -4  * * * ...giving up
Timed out receiving responses
Perhaps no local router has a route for source 81.20.48.1

Here are a few show commands and results
xoprsh> show pim neighbors
Interface    DRpriority NeighborAddr    V Mode   Holdtime Timeout
eth1                  1 82.70.154.150   2 Sparse      105      98

xorpsh> show pim interface
Interface    State    Mode   V PIMstate Priority DRaddr          Neighbors
eth0         UP       Sparse 2 DR              1 192.168.4.3             0
eth1         UP       Sparse 2 NotDR           1 82.70.154.150           1
register_vif UP       Sparse 2 DR              1 192.168.4.3             0

why is eth1 "NotDR?"

xorpsh> show pim mrib
DestPrefix         NextHopRouter   VifName VifIndex MetricPref Metric
0.0.0.0/0          82.70.154.150   eth1    1               254  65535
82.70.154.144/29   82.70.154.145   eth1    1                 0      0
192.168.4.0/24     192.168.4.3     eth0    0                 0      0

xorpsh> ping 224.0.0.1
PING 224.0.0.1 (224.0.0.1) 56(84) bytes of data.
64 bytes from 82.70.154.150: icmp_seq=1 ttl=255 time=1.08 ms
64 bytes from 82.70.154.150: icmp_seq=2 ttl=255 time=1.05 ms

xorpsh> ping 224.0.0.13
PING 224.0.0.13 (224.0.0.13) 56(84) bytes of data.
64 bytes from 82.70.154.150: icmp_seq=1 ttl=255 time=1.07 ms
64 bytes from 82.70.154.150: icmp_seq=2 ttl=255 time=1.07 ms

xorpsh> show pim rps
RP              Type      Pri Holdtime Timeout ActiveGroups GroupPrefix

(i.e. there are none)

Here is my configuration.
/*
<snip comments>
*/
interfaces {
    interface eth0 {
        default-system-config
    }
    interface eth1 {
        default-system-config
    }
}

plumbing {
    mfea4 {
        interface eth0 {
            vif eth0 {
                disable: false
            }
        }
        interface eth1 {
            vif eth1 {
                disable: false
            }
        }
        interface register_vif {
            vif register_vif {
                disable: false
            }
        }
    }
}

protocols {
    igmp {
        interface eth0 {
            vif eth0 {
                disable: false
            }
        }
        interface eth1 {
            vif eth1 {
                disable: false
            }
        }
    }

    pimsm4 {
        interface eth0 {
            vif eth0 {
                disable: false
            }
        }
        interface eth1 {
            vif eth1 {
                disable: false
            }
        }
        interface register_vif {
            vif register_vif {
                disable: false
            }
        }
    }

    fib2mrib {
        disable: false
    }
}

Many thanks in advance,

Spencer