[Xen-users] Cross-Domain Networking Problems

[Brian Bisaillon <brian_bisaillon@xxxxxxxxxx>]

xm list reveals the following information...

Name              Id  Mem(MB)  CPU  State  Time(s) 
Console
Domain-0           0      315    0  r----   2058.1
Domain-1          11      342    0  -b---      5.2   
9611
Domain-2          12      342    0  -b---      3.9   
9612

Xen seems to be working beautifully but I have not yet
figured out how to get Domain-0 to ping both Domain-1
and Domain-2, how to get Domain-1 to ping both
Domain-0 and Domain-2 and how to get Domain-2 to ping
both Domain-0 and Domain-1. 

brctl show reveals the following information...

bridge name     bridge id               STP enabled   
 interfaces
xen-br0         8000.feffffffffff       no            
 vif13.0
                                                      
 vif14.0

ifconfig vif13.0 reveals the following information...

vif13.0   Link encap:Ethernet  HWaddr
FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::fcff:ffff:feff:ffff/64
Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500 
Metric:1
          RX packets:7 errors:0 dropped:0 overruns:0
frame:0
          TX packets:0 errors:0 dropped:6 overruns:0
carrier:0
          collisions:0 txqueuelen:0
          RX bytes:502 (502.0 b)  TX bytes:0 (0.0 b)

ifconfig vif14.0 reveals the following information...

vif14.0   Link encap:Ethernet  HWaddr
FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::fcff:ffff:feff:ffff/64
Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500 
Metric:1
          RX packets:7 errors:0 dropped:0 overruns:0
frame:0
          TX packets:0 errors:0 dropped:6 overruns:0
carrier:0
          collisions:0 txqueuelen:0
          RX bytes:502 (502.0 b)  TX bytes:0 (0.0 b)

ifconfig xen-br0 reveals the following information...

xen-br0   Link encap:Ethernet  HWaddr
FE:FF:FF:FF:FF:FF
          inet addr:192.168.0.1  Bcast:192.168.3.255 
Mask:255.255.255.255
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0
frame:0
          TX packets:1 errors:0 dropped:0 overruns:0
carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:86 (86.0 b)

ifconfig eth0 reveals the following information...

eth0      Link encap:Ethernet  HWaddr
AA:00:00:00:00:11
          inet addr:192.168.0.2  Bcast:192.168.3.255 
Mask:255.255.252.0
          inet6 addr: fe80::a800:ff:fe00:11/64
Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500 
Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0
frame:0
          TX packets:10 errors:0 dropped:0 overruns:0
carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:628 (628.0 b)

Did you notice that both eth0 and xen-br0 have the
same IP address information?

If I try to ping 192.168.0.1 from Domain-1 or
Domain-2, it fails.

Domain-1 has an IP address for its eth0 of 192.168.0.2
and Domain-2 has an IP address for eth0 of 192.168.0.3
and if I try to ping 192.168.0.2 from Domain-2 or ping
192.168.0.3 from Domain-1, it also fails.

Finally, trying to ssh to 192.168.0.2 or 192.168.0.3
from Domain-0 fails. I am using Suse 9.3 and my guest
OSes are also Suse 9.3. Any help would be greatly
appreciated. I have never used bridge utils in Linux
before although I have use ip route and iptables
extensively. I have never used VLANs under Linux yet
either although I want to try that out eventually.

Thanks!

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