192.168.2.21/24 means use 192.168.2.1 thru 192.168.254, ie. the last 8 bits define the network addresses. Have a read of this to explain fully http://www.techrepublic.com/article/ip-subnetting-made-easy/6089187
" The most important thing to know about chopping up a network is that you can't arbitrarily pick the beginning and ending. The chopping must be along clean binary divisions." ----- Original Message ----- From: "Iftakhul Anwar" <[email protected]> To: [email protected] Sent: Friday, 21 September, 2012 5:35:26 AM Subject: [Openstack] <ask> Specify starting Ip dchp Openstack Hi All, I've intalled openstack essex on ubuntu 12.04 successfully.But i get confuse about dhcp configuration.i'm running on network 192.168.2.0.my eth0 have ip 192.168.2.20. I use float ip= 192.168.2.21/24 then fixed ip range = 172.16.1.30/16 . Actually everything running well, i can running instance, accessing instance from ip which get from dhcp.But my dhcp start from 192.168.2.1. i want my dhcp start from 192.168.2.23. what should i do to solve this issue ? this is my nova.conf --dhcpbridge_flagfile=/etc/nova/nova.conf --dhcpbridge=/usr/bin/nova-dhcpbridge --logdir=/var/log/nova --state_path=/var/lib/nova --lock_path=/var/lock/nova --allow_admin_api=true --use_deprecated_auth=false --auth_strategy=keystone --scheduler_driver=nova.scheduler.simple.SimpleScheduler --s3_host=192.168.2.20 --ec2_host=192.168.2.20 --rabbit_host=192.168.2.20 --cc_host=192.168.2.20 --nova_url= http://192.168.2.20:8774/v1.1/ --routing_source_ip=192.168.2.20 --glance_api_servers= 192.168.2.20:9292 --image_service=nova.image.glance.GlanceImageService --iscsi_ip_prefix=192.168.22 --sql_connection=mysql:// nova:[email protected]/nova --ec2_url= http://192.168.2.20:8773/services/Cloud --keystone_ec2_url= http://192.168.2.20:5000/v2.0/ec2tokens --api_paste_config=/etc/nova/api-paste.ini --libvirt_type=kvm --libvirt_use_virtio_for_bridges=true --start_guests_on_host_boot=true --resume_guests_state_on_host_boot=true --vnc_enabled=true --vncproxy_url= http://192.168.2.20:6080 --vnc_console_proxy_url= http://192.168.2.20:6080 # network specific settings --network_manager=nova.network.manager.FlatDHCPManager --public_interface=eth0 --flat_interface=eth0:1 --flat_network_bridge=br100 --fixed_range= 172.16.1.30/16 --floating_range= 192.168.2.20/24 --network_size=30 --flat_network_dhcp_start=172.16.1.31 --flat_injected=False --force_dhcp_release --iscsi_helper=tgtadm --connection_type=libvirt --root_helper=sudo nova-rootwrap --verbose Help me to solve this Thanks -- M.Iftakhul Anwar Meruvian Integrator High Performance Computing / Cloud Computing (HPC/CC) Office Phone : 021-93586577 Mobile Phone : 085215331477 Blog : http://blog.mervpolis.com/roller/anwar FB : http://www.facebook.com/troya.adromeda Website : www.meruvian.org _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
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