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[Xen-users] xen bridge config problem



I am unable to ping the rest of the machines on the network from  the guest OS. 
 

The host, Domain-0 (10.0.1.201), and guest 10.0.1.209 can ping each other.

The host, Domain-0 (10.0.1.201) can ping the gateway 10.0.1.1.

The guest 10.0.1.209 can not ping the gateway.  

I want guest domains to be available from the network.  Any tips what I might 
be missing?  See config details below.

Thanks,

Todd

---------------------------------------------------------------------------------------------

# file:  xend-config.sxp
# Xend configuration file.

# Port xend should use for the HTTP interface.
(xend-port         8000)

# Address xend should listen on.
# Specifying 'localhost' prevents remote connections.
# Specifying the empty string '' allows all connections.
(xend-address      'localhost')

## Use the following if VIF traffic is routed.
# The script used to start/stop networking for xend.
(network-script     network-route)
# The default script used to control virtual interfaces.
#(vif-script         vif-route)

## Use the following if VIF traffic is bridged.
# The script used to start/stop networking for xend.
#(network-script    network)
# The default bridge that virtual interfaces should be connected to.
(vif-bridge        xen-br0)
# The default script used to control virtual interfaces.
(vif-script        vif-bridge)

# Whether iptables should be set up to prevent IP spoofing for
# virtual interfaces. Specify 'yes' or 'no'.
(vif-antispoof     yes)

# Setup script for file-backed block devices
(block-file block-file)

# Setup script for enbd-backed block devices
(block-enbd block-enbd)


more gsuse.conf
#  -*- mode: python; -*-
#============================================================================
# Python configuration setup for 'xm create'.
# This script sets the parameters used when a domain is created using 'xm 
create'.
# You use a separate script for each domain you want to create, or
# you can set the parameters for the domain on the xm command line.
#============================================================================

#----------------------------------------------------------------------------
#########################
#####Domain config files###############
#############################
# Kernel image file.
kernel = "/boot/vmlinuz-2.6.8-24.14-xen"

# Optional ramdisk.
ramdisk = "/boot/initrd-2.6.8-24.14-xen"

# The domain build function. Default is 'linux'.
#builder='linux'

# Initial memory allocation (in megabytes) for the new domain.
memory = 128

# A name for your domain. All domains must have different names.
name = "xCAT-domain"

# Which CPU to start domain on?
#cpu = -1   # leave to Xen to pick

#----------------------------------------------------------------------------
# Define network interfaces.

# Number of network interfaces. Default is 1.
nics=1

# Optionally define mac and/or bridge for the network interfaces.
# Random MACs are assigned if not given.
#vif = [ 'mac=aa:00:00:00:00:11, bridge=xen-br0 ip=10.0.1.209' ]
vif = [ 'mac=aa:00:00:00:00:11, bridge=xen-br0' ]

#----------------------------------------------------------------------------
# Define the disk devices you want the domain to have access to, and
# what you want them accessible as.
# Each disk entry is of the form phy:UNAME,DEV,MODE
# where UNAME is the device, DEV is the device name the domain will see,
# and MODE is r for read-only, w for read-write.

#disk = [ 'phy:hda1,hda1,r' ]
disk = [ 'phy:hda13,hda1,w' ]

#----------------------------------------------------------------------------
# Set the kernel command line for the new domain.
# You only need to define the IP parameters and hostname if the domain's
# IP config doesn't, e.g. in ifcfg-eth0 or via DHCP.
# You can use 'extra' to set the runlevel and custom environment
# variables used by custom rc scripts (e.g. VMID=, usr= ).

# Set if you want dhcp to allocate the IP address.
#dhcp="dhcp"
#ip="10.0.1.209"
# Set netmask.
#netmask="255.255.255.0"
# Set default gateway.
#gateway="10.0.1.1"
# Set the hostname.
#hostname= "vm%d" % vmid
#hostname="xcat-guest"

# Set root device.
root = "/dev/hda1 rw"
#root = "/dev/hda1 ro"

# Root device for nfs.
#root = "/dev/nfs"
# The nfs server.
#nfs_server = '169.254.1.0'
# Root directory on the nfs server.
#nfs_root   = '/full/path/to/root/directory'

# Sets runlevel 4.
extra = "4"

#----------------------------------------------------------------------------
# Set according to whether you want the domain restarted when it exits.
# The default is 'onreboot', which restarts the domain when it shuts down
# with exit code reboot.
# Other values are 'always', and 'never'.

#restart = 'onreboot'

#============================================================================

# guest network info

linux:~ # ifconfig
eth0      Link encap:Ethernet  HWaddr AA:00:00:00:00:11
          inet addr:10.0.1.209  Bcast:10.0.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1413 errors:0 dropped:0 overruns:0 frame:0
          TX packets:81 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:125117 (122.1 Kb)  TX bytes:6938 (6.7 Kb)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:30 errors:0 dropped:0 overruns:0 frame:0
          TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2568 (2.5 Kb)  TX bytes:2568 (2.5 Kb)

linux:~ # netstat -nr
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
10.0.1.0        0.0.0.0         255.255.255.0   U         0 0          0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 eth0
127.0.0.0       0.0.0.0         255.0.0.0       U         0 0          0 lo
0.0.0.0         10.0.1.201      0.0.0.0         UG        0 0          0 eth0
linux:~ #

##################33
# host network info


Host_machine # ifconfig
eth0      Link encap:Ethernet  HWaddr 00:0F:3D:A0:7A:AC
          inet addr:10.0.1.201  Bcast:10.0.1.255  Mask:255.255.255.0
          inet6 addr: fe80::20f:3dff:fea0:7aac/64 Scope:Link
          UP BROADCAST RUNNING 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:ed100000-0

eth1      Link encap:Ethernet  HWaddr 00:30:1B:23:F6:10
          inet addr:10.200.0.1  Bcast:10.200.0.255  Mask:255.255.255.0
          inet6 addr: fe80::230:1bff:fe23:f610/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:460 (460.0 b)
          Interrupt:18 Base address:0x6000

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:12663 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12663 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:995542 (972.2 Kb)  TX bytes:995542 (972.2 Kb)

vif6.0    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:81 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1463 errors:0 dropped:198 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:6938 (6.7 Kb)  TX bytes:129676 (126.6 Kb)

xen-br0   Link encap:Ethernet  HWaddr 00:0F:3D:A0:7A:AC
          inet addr:10.0.1.201  Bcast:10.0.1.255  Mask:255.255.255.255
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:23751 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7959 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:1725615 (1.6 Mb)  TX bytes:1288331 (1.2 Mb)


Host_machine # netstat -nr
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
10.0.1.0        0.0.0.0         255.255.255.0   U         0 0          0 xen-br0
10.200.0.0      0.0.0.0         255.255.255.0   U         0 0          0 eth1
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 xen-br0
127.0.0.0       0.0.0.0         255.0.0.0       U         0 0          0 lo
0.0.0.0         10.0.1.1        0.0.0.0         UG        0 0          0 xen-br0


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