On 08/04/2015 01:44 AM, Andreas Scheuring wrote:
Can you try answer 1 of [1]?
I've never tried it, but I heard from folks who configured it like that.
With this masquerading, your vm should be able to reach your 192.x
network. But as it's NAT it won't work the other way round (e.g.
establish a connection from outside into your vm)
The proper way would be to configure your provider network to match the
192.x subnet. In addition you would need to plug your 192.x interface
(eth0)? into the ovs br-ex. But be careful! This steps breaks
connectivity via this interface. So be sure that you're logged in via
another interface or via some vnc session.
Thanks. This works:
1) Add this to local.conf before running stack.sh:
[[local|localrc]]
ADMIN_PASSWORD=secret
ENABLED_SERVICES=g-api,g-reg,key,n-api,n-cpu,n-sch,n-cond,n-crt,n-novnc,mysql,rabbit,dstat,quantum,q-svc,q-agt,q-dhcp,q-l3,q-meta
SERVICE_HOST=127.0.0.1
NETWORK_GATEWAY=10.0.0.1
PUBLIC_NETWORK_GATEWAY=172.24.4.1
... other config ...
[[post-config|$Q_DHCP_CONF_FILE]]
[DEFAULT]
dnsmasq_dns_servers = 192.168.122.1
NOTE: If you are adding the above from a script as e.g. a here doc,
don't forget to escape the $ e.g. [[post-config|\$Q_DHCP_CONF_FILE]]
2) Run this command after running stack.sh and before creating a vm:
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
Now, the nested VM can ping external IP addresses, and name server
lookups work.
If you have further questions regarding provider networks, feel free to
ask again!
[1]
https://ask.openstack.org/en/question/44266/connect-vm-in-devstack-to-external-network/
On Mo, 2015-08-03 at 22:07 -0600, Rich Megginson wrote:
I'm running devstack in a VM (Fedora 21 host, EL 7.1.x VM) with a static
IP address (because dhcp was not working):
cat > /etc/sysconfig/network-scripts/ifcfg-eth0 <<EOF
DEVICE="eth0"
BOOTPROTO="static"
DHCPCLASS=
HWADDR=$VM_MAC
IPADDR=192.168.122.5
NETMASK=255.255.255.0
GATEWAY=192.168.122.1
ONBOOT=yes
NM_CONTROLLED=no
TYPE="Ethernet"
USERCTL="yes"
PEERDNS="yes"
DNS1="192.168.122.1"
IPV6INIT="no"
EOF
with Neutron networking enabled and Nova networking disabled:
[[local|localrc]]
IP_VERSION=4
ENABLED_SERVICES=g-api,g-reg,key,n-api,n-cpu,n-sch,n-cond,n-crt,n-novnc,mysql,rabbit,dstat,quantum,q-svc,q-agt,q-dhcp,q-l3,q-meta
SERVICE_HOST=127.0.0.1
NETWORK_GATEWAY=10.0.0.1
PUBLIC_NETWORK_GATEWAY=172.24.4.1
...
I've followed this some, but I don't want to use the provider network:
http://docs.openstack.org/developer/devstack/guides/neutron.html
I've hacked the floating_ips exercise to use neutron networking commands:
http://ur1.ca/ncjm6
I can ssh into the nested VM, I can assign it a floating IP.
However, it cannot see the outside world. From it, I can ping the
10.0.0.1 network and the 172.24.4.1 network, and even 192.168.122.5, but
not 192.168.122.1 or anything outside of the VM.
route looks like this: http://ur1.ca/ncjog
ip addr looks like this: http://ur1.ca/ncjop
Here is the entire output of stack.sh:
https://rmeggins.fedorapeople.org/stack.out
Here is the entire output of the exercise:
https://rmeggins.fedorapeople.org/exercise.out
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