[Xen-users] Multicast Traffic not passing thru

[Azher Mughal <azher@xxxxxxxxxxxxxxx>]

Hi,

Domain-0 is CentOS5.2 (2.6.18-92.1.22.el5xen). Child Domain is debian
etch (2.6.18-6-686). I am using eth1 for all the sub domains.

I have two ospf daemons running which exchange information via multicast
traffic. One is in Domain-0 and the other is the child domain. I don't
have any iptables rule.

I have gre tunnel across both domains. I can ping both end of the gre
tunnel, but Multicast traffic is not passing through that gre tunnel.
Interface details, plz se below.

Any suggestions / pointers to start looking.

Thanks
-Azher


----------- domain-0 -----------------

eth1      Link encap:Ethernet  HWaddr 00:E0:81:71:95:CB
          inet6 addr: fe80::2e0:81ff:fe71:95cb/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:677682 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:78750075 (75.1 MiB)  TX bytes:368 (368.0 b)

hp-gva-gre Link encap:UNSPEC  HWaddr
C0-41-C4-4E-00-00-00-00-00-00-00-00-00-00-00-00
          inet addr:10.7.5.1  P-t-P:10.7.5.1  Mask:255.255.255.252
          UP POINTOPOINT RUNNING NOARP  MTU:1476  Metric:1
          RX packets:9 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2562 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:756 (756.0 b)  TX bytes:225232 (219.9 KiB)

peth1     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:1386026 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12928 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:132889740 (126.7 MiB)  TX bytes:1615610 (1.5 MiB)
          Memory:d9120000-d9140000

xenbr1    Link encap:Ethernet  HWaddr DA:0A:5A:28:ED:0B
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:668136 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:68595140 (65.4 MiB)  TX bytes:0 (0.0 b)

----------- child domain --------------

eth0      Link encap:Ethernet  HWaddr 00:16:3E:11:FC:F8
          inet addr:192.168.10.1  Bcast:192.168.10.255 Mask:255.255.255.224
          inet6 addr: fe80::216:3eff:fe11:fcf8/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:21678 errors:9 dropped:23 overruns:0 frame:0
          TX packets:12845 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:12910337 (12.3 MiB)  TX bytes:1603558 (1.5 MiB)
          Interrupt:169 Base address:0xc200

hp-gva-gr Link encap:UNSPEC  HWaddr
C0-41-C4-69-00-00-00-00-00-00-00-00-00-00-00-00
          inet addr:10.7.5.2  P-t-P:10.7.5.2  Mask:255.255.255.252
          UP POINTOPOINT RUNNING NOARP  MTU:1476  Metric:1
          RX packets:7 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2495 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:588 (588.0 b)  TX bytes:219124 (213.9 KiB)


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