[Xen-users] Multicast usage in briding setup

[Bertrand Baesjou <baesjou@xxxxxx>]

Hi all,

Quite new to XEN, so maybe a stupid question. I am trying to set up 
hosts at one machine using the bridge setup. All interfaces get nice ip 
addresses and it works quite well. However they do not seem to 
receive/answer multicast packets.....
What option have I missing? Is there documentation, because couldn't 
find anything about enabling/disabling multicast. Running on (k)ubuntu 
edgy.  If you need more info, please let me know. I saw some setups were 
xenbr0 etc. had the MULTICAST flag enabled, so....
Thanks in advance,
   Bertrand

# ifconfig (host OS)
eth0      Link encap:Ethernet  HWaddr 00:01:03:05:DB:83
         inet addr:10.95.8.80  Bcast:10.95.31.255  Mask:255.255.224.0
         inet6 addr: fe80::201:3ff:fe05:db83/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:731999 errors:0 dropped:0 overruns:0 frame:0
         TX packets:20139 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:156278333 (149.0 MiB)  TX bytes:1641300 (1.5 MiB)

lo        Link encap:Local Loopback
         inet addr:127.0.0.1  Mask:255.0.0.0
         inet6 addr: ::1/128 Scope:Host
         UP LOOPBACK RUNNING  MTU:16436  Metric:1
         RX packets:26 errors:0 dropped:0 overruns:0 frame:0
         TX packets:26 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:1892 (1.8 KiB)  TX bytes:1892 (1.8 KiB)

peth0     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
         inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
         UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
         RX packets:739802 errors:0 dropped:0 overruns:3299 frame:0
         TX packets:39299 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:161571123 (154.0 MiB)  TX bytes:3443117 (3.2 MiB)
         Interrupt:5 Base address:0xe000

vif0.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
         inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
         UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
         RX packets:20139 errors:0 dropped:0 overruns:0 frame:0
         TX packets:731999 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:1641300 (1.5 MiB)  TX bytes:156278333 (149.0 MiB)

vif6.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
         inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
         UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
         RX packets:8498 errors:0 dropped:0 overruns:0 frame:0
         TX packets:535858 errors:0 dropped:9629 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:690589 (674.4 KiB)  TX bytes:81494863 (77.7 MiB)

vif7.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
         inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
         UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
         RX packets:10448 errors:0 dropped:0 overruns:0 frame:0
         TX packets:535128 errors:0 dropped:18342 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:769587 (751.5 KiB)  TX bytes:81094422 (77.3 MiB)

xenbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
         inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
         UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
         RX packets:650476 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:95182167 (90.7 MiB)  TX bytes:0 (0.0 b)

# ifconfig  (XEN machine 1)
eth0      Link encap:Ethernet  HWaddr 00:16:3E:53:36:B6 
         inet addr:10.95.25.54  Bcast:10.95.31.255  Mask:255.255.224.0
         inet6 addr: fe80::216:3eff:fe53:36b6/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:544983 errors:0 dropped:0 overruns:0 frame:0
         TX packets:10636 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:82235847 (78.4 MiB)  TX bytes:933531 (911.6 KiB)

lo        Link encap:Local Loopback 
         inet addr:127.0.0.1  Mask:255.0.0.0
         inet6 addr: ::1/128 Scope:Host
         UP LOOPBACK RUNNING  MTU:16436  Metric:1
         RX packets:16 errors:0 dropped:0 overruns:0 frame:0
         TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:1232 (1.2 KiB)  TX bytes:1232 (1.2 KiB)

# ifconfig  (XEN machine 2)
eth0      Link encap:Ethernet  HWaddr 00:16:3E:62:CC:61 
         inet addr:10.95.24.59  Bcast:10.95.31.255  Mask:255.255.224.0
         inet6 addr: fe80::216:3eff:fe62:cc61/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:549636 errors:0 dropped:0 overruns:0 frame:0
         TX packets:8757 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:83077227 (79.2 MiB)  TX bytes:833907 (814.3 KiB)

lo        Link encap:Local Loopback 
         inet addr:127.0.0.1  Mask:255.0.0.0
         inet6 addr: ::1/128 Scope:Host
         UP LOOPBACK RUNNING  MTU:16436  Metric:1
         RX packets:12 errors:0 dropped:0 overruns:0 frame:0
         TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:896 (896.0 b)  TX bytes:896 (896.0 b)

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