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) _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users