[Xen-users] multicast issues in dom0

[Fabien Hermenier <fabien.hermenier@xxxxxx>]

Hy
I want to use ganglia to monitor my dom0. Ganglia is based on multicast 
(multicast channel=239.2.11.71) to propagate datas.
However, dom0s does not seens to send multicast packets on my networks. 
My node (node1) use a gateway (frontal. ....) which host the data 
aggregator. tcpdump on my xen nodes reports multicast packets from my 
others nodes that are not virtualized.
Any hints/suggestions ?

Regards
Fabien hermenier

I use the standard network bridges scripts, here is my ifconfigs:

eth0      Link encap:Ethernet  HWaddr 00:09:3d:13:23:42 
         inet adr:192.168.0.1  Bcast:192.168.0.255  Masque:255.255.255.0
         adr inet6: fe80::209:3dff:fe13:2342/64 Scope:Lien
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:18286 errors:0 dropped:0 overruns:0 frame:0
         TX packets:7750 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 lg file transmission:0
         RX bytes:1301396 (1.2 MiB)  TX bytes:1016686 (992.8 KiB)

lo        Link encap:Boucle locale 
         inet adr:127.0.0.1  Masque:255.0.0.0
         adr inet6: ::1/128 Scope:Hôte
         UP LOOPBACK RUNNING  MTU:16436  Metric:1
         RX packets:76816 errors:0 dropped:0 overruns:0 frame:0
         TX packets:76816 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 lg file transmission:0
         RX bytes:10494804 (10.0 MiB)  TX bytes:10494804 (10.0 MiB)

peth0     Link encap:Ethernet  HWaddr 00:09:3d:13:23:42 
         adr inet6: fe80::209:3dff:fe13:2342/64 Scope:Lien
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:18283 errors:0 dropped:0 overruns:0 frame:0
         TX packets:7754 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 lg file transmission:1000
         RX bytes:1695142 (1.6 MiB)  TX bytes:1056726 (1.0 MiB)
         Interruption:18


and my routes:
Table de routage IP du noyau
Destination     Passerelle      Genmask         Indic Metric Ref    Use 
Iface
192.168.0.0     *               255.255.255.0   U     0      0        0 eth0
default         frontal.arantel 0.0.0.0         UG    0      0        0 eth0

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