Hello.
I'd appreciate comments to solve the following problem.
The problem is that Dom0 as well as DomU can communicate only to
the machines in localnetwork. One strange status of Dom0 is that
there are two set of lines, one for eth0 and the other for xenbr0, are
shown by `netstat -r`.
The hardware is IBM System x3650 which has two Broadcom NetXtreme II
BCM5708 1000Base-T network interfaces. OS is Debian etch with its xen
packages.
linux-image-2.6.18-3-xen-amd64
linux-modules-2.6.18-3-xen-amd64
xen-hypervisor-3.0.3-1-amd64
xen-tools
xen-utils-3.0.3-1
xen-utils-common
bridge-utils
Network related lines in /etc/xen/xend-config.sxp are like the
following.
(network-script 'network-bridge bridge=xenbr0 netdev=eth0')
#(network-script network-dummy)
(vif-script vif-bridge)
Debian network interface setting (/etc/network/interfaces) of Dom0 is
like
the following.
auto lo
iface lo inet loopback
# The primary network interface
auto xenbr0
iface xenbr0 inet static
address 10.140.2.84
netmask 255.255.254.0
network 10.140.1.0
broadcast 10.140.2.255
gateway 10.140.2.254
bridge_ports eth0
The last part shows the network states of Dom0. Notice that we have
network
of 23bit mask and eth0 have inet addr 10.140.1.23, which is one of
the dhcp
server prividing address and it is not specified (as far as I know)
anywhere in Dom0.
Is it necessary to have one IP address for eth0 and another for xenbr0 ?
If not, how can one to stop eth0 to have IP address ?
Again, I appreciate any comments for solving this problem.
Thank you.
--- ici
# xm list
Name ID Mem(MiB) VCPUs
State Time(s)
Domain-0 0 4007 2
r----- 24.1
# netstat -r
Kernel IP routing table
Destination Gateway Genmask Flags MSS
Window irtt Iface
localnet * 255.255.254.0 U 0
0 0 xenbr0
localnet * 255.255.254.0 U 0
0 0 eth0
stops several seconds
default 10.140.1.254 0.0.0.0 UG 0
0 0 eth0
default 10.140.1.254 0.0.0.0 UG 0
0 0 xenbr0
# brctl show
bridge name bridge id STP enabled interfaces
xenbr0 8000.00145e18c59f no eth0
# ifconfig
eth0 Link encap:Ethernet HWaddr 00:14:5E:18:C5:9F
inet addr:10.140.1.23 Bcast:10.140.2.255 Mask:
255.255.254.0
inet6 addr: fe80::214:5eff:fe18:c59f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5392 errors:0 dropped:0 overruns:0 frame:0
TX packets:1431 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:809942 (790.9 KiB) TX bytes:230888 (225.4 KiB)
Interrupt:16 Memory:ce000000-ce011100
eth1 Link encap:Ethernet HWaddr 00:14:5E:18:C5:A1
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:17 Memory:ca000000-ca011100
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:570 errors:0 dropped:0 overruns:0 frame:0
TX packets:570 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:53824 (52.5 KiB) TX bytes:53824 (52.5 KiB)
xenbr0 Link encap:Ethernet HWaddr 00:14:5E:18:C5:9F
inet addr:10.140.2.84 Bcast:10.140.2\.255 Mask:
255.255.254.0
inet6 addr: fe80::214:5eff:fe18:c59f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5282 errors:0 dropped:0 overruns:0 frame:0
TX packets:1357 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:702528 (686.0 KiB) TX bytes:215701 (210.6 KiB)
# ipaddr list
1: lo: <LOOPBACK,UP,10000> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast
qlen 1000
link/ether 00:14:5e:18:c5:9f brd ff:ff:ff:ff:ff:ff
inet 10.140.1.23/23 brd 10.140.1.255 scope global eth0
inet6 fe80::214:5eff:fe18:c59f/64 scope link
valid_lft forever preferred_lft forever
3: eth1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc
pfifo_fast qlen 1000
link/ether 00:14:5e:18:c5:a1 brd ff:ff:ff:ff:ff:ff
4: sit0: <NOARP> mtu 1480 qdisc noop
link/sit 0.0.0.0 brd 0.0.0.0
5: xenbr0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc noqueue
link/ether 00:14:5e:18:c5:9f brd ff:ff:ff:ff:ff:ff
inet 10.140.2.84/23 brd 10.140.1.255 scope global xenbr0
inet6 fe80::214:5eff:fe18:c59f/64 scope link
valid_lft forever preferred_lft forever
6: vif0.0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
7: veth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
8: vif0.1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
9: veth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
10: vif0.2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
11: veth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
12: vif0.3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
13: veth3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
# xm create Dom1.cfg
...
# xm list
Name ID Mem(MiB) VCPUs
State Time(s)
Domain-0 0 4007 2
r----- 27.2
Dom1 2 1024 1 -
b---- 1.
# brctl show
bridge name bridge id STP enabled interfaces
xenbr0 8000.00145e18c59f no eth0
vif2.0
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