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xen-users
Re: [Xen-users] Re: Cross-Domain Networking Problems
first off, make sure of a few things, that your card is actually bound to
your bridge, and iptables on domO isn't screwing with anything, ie, here
is my dom0 info:
$ sudo brctl show
Password:
bridge name bridge id STP enabled interfaces
xen-br0 8000.001143fd756c no eth0 <---note
vif1.0
vif2.0
vif3.0
vif4.0
xen-br1 8000.001143fd756d no eth3
vif1.1
vif2.1
vif3.1
vif4.1
$ sudo iptables --list
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT) <----- note
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
i had to set up my networking myself, look in archives from me for my
configs on that. (especially to get eth0 bound to xen-br0 consistently.
On Tue, 17 May 2005, Ralf Lübben wrote:
Hello,
I have the same problem. Is there a possibility that the
domains could communicate over the bridge?
I had a look with ethereal on the traffic. There are no are responses
for the requests.
Thanks.
Ralf Lübben
Brian Bisaillon wrote:
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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http://lists.xensource.com/xen-users
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