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Instance can't communicate on network

asked 2013-10-04 09:59:09 -0500

Reaper6971 gravatar image

Howdy. I'm having problems with an instance communicating on the network. I can get an IP Address from the DHCP server on the subnet, but can't ping anything. Looking at my switches mac-address-table (cisco 3524xl) the MAC of the instance is not shown, though the machine is shown in the DHCP Leases and has the leased IP.

What I really need is advice on how to troubleshoot this. (Or just a flat answer on how to resolve it (one can hope, right?))

Configuration
1x Controller - Physical box
1x Compute Node -Phyiscal Box
Both boxes have a connection to vlan666 192.168.0.0/24 (eth0) and vlan101 10.10.0.0/16 (eth1 - not used)
There is a router between vlan666 and vlan101, vlan101 leads out of the corporate network to the internet.
Both boxes can communicate on 192.168.0.0/24 and the 10.10.0.0/16 subnets.

Both configured using the stock Alamo iso from OpenStack.

Management & VM Networks are both the same (eth0, 192.168.0.0/24) -- I realize this is probably dumb, and wouldn't mind fixing, but I don't know how to fix w/o burning the systems down.

Nova.Conf

##### NETWORK #####
network_manager=nova.network.manager.FlatDHCPManager
#--flat_interface=eth1
#--flat_network_dhcp_start=10.20.1.2
multi_host=false
public_interface=br0
fixed_range=192.168.0.0/24
dmz_cidr=10.128.0.0/24
# Send a dhcp release on instance termination (default: false)
force_dhcp_release=true
# Send gratuitous ARPs for HA setup (default: false)
send_arp_for_ha=true
# Auto-assign floating ip to VM (default: false)
auto_assign_floating_ip=false
use_single_default_gateway=false
libvirt_use_virtio_for_bridges=true
dhcp_domain=novalocal

On the windows instance itself I've pulled the firewall, made sure the network is in the right location, etc.

There is a windows server 2012 DC that handles DNS & DHCP running in Server 2012 hyper-v. This device can fully communicate on 192.168.0.0/24.

Is there some setting I need to change? Am I dumb and need to configure Eth1 as management and Eth0 as VM?

Any and all help apprecited

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Comments

So yeah, DON'T have the Management & VM networks configured to be the same subnet... this appears to break all the things...

Reaper6971 gravatar imageReaper6971 ( 2013-10-08 15:06:16 -0500 )edit

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answered 2013-10-04 12:56:42 -0500

Reaper6971 gravatar image

updated 2013-10-08 16:11:34 -0500

So yeah, DON'T have the Management & VM networks configured to be the same subnet... this appears to break all the things...

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Asked: 2013-10-04 09:59:09 -0500

Seen: 576 times

Last updated: Oct 08 '13