[Xen-users] 2 NIC HVM's not working properly.

[David Todd <dtodd@xxxxxxxxxxx>]

I've asked this question before, and aside from a response asking me if 
DHCP was turned on (it is and all other clients on that network are 
communicating properly), received no further assistance. I hope someone 
can be of further assistance this time.
I have a CentOS 5 64-bit machine running a 4-core Intel processor and 
4GB of memory with two onboard network cards.
The network cards are fully supported, eth0 and eth1 show up and obtain 
DHCP addresses from their respective networks
eth0 is 192.168.1.220 (/24 subnet) gateway: 192.168.1.254
eth1 is 192.168.2.220 (/24 subnet) gateway: 192.168.2.254
default gateway is 192.168.2.254 (eth1 comes up second, this is auto-set)

I have this script running as my network-bridge script wrapper:
#!/bin/sh
dir=$(dirname "$0")
"$dir/network-bridge" "$@" vifnum=0
"$dir/network-bridge" "$@" vifnum=1

as such, I have both bridges: xenbr0 mapped to eth0 and xenbr1 mapped to 
eth1
Any and all guests on XEN Virtualization obtain an IP address from the 
eth0/xenbr0 side of the equation (an address on the 192.168.1.0/24 network)
Any and all guests on XEN Virtualization DO NOT obtain an IP address 
from the eth1/xenbr1 side of the equation (on the 192.168.2.0/24 network)
Here is an example of one of my guest configurations:
name = "VendPrintMDID"
builder = "hvm"
memory = "1024"
disk = [ 'file:/xen/disks/VendPrintMDID,hda,w', 
'file:/xen/iso/MWS2003R2-i386-DISK1.iso,hdc:cdrom,r', 
'file:/xen/iso/MWS2003R2-i386-DISK2.iso,hdd:cd$
vif = [ 'type=ioemu, mac=00:16:3e:4c:69:28, bridge=xenbr0', 'type=ioemu, 
mac=01:16:3e:4c:69:28, bridge=xenbr1' ]
#uuid = "0a08915c-636d-cc1d-8a6c-8d1e457bdcd1"
device_model = "/usr/lib64/xen/bin/qemu-dm"
kernel = "/usr/lib/xen/boot/hvmloader"
vnc=1
vncunused=1
apic=1
acpi=1
pae=1

and the routing table:
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt 
Iface
192.168.2.0     0.0.0.0         255.255.255.0   U         0 0          0 
eth1
192.168.1.0     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 
eth1
0.0.0.0         192.168.2.254   0.0.0.0         UG        0 0          0 
eth1
ifconfig shows both xenbr0 and xenbr1 up, a bunch of vif's up/etc.

does anyone have any clue what the problem is here and why my guests 
can't communicate in or out on xenbr1?
Thanks!
David Todd


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