On Jun 4, 2012, at 8:22 PM, romi zhang wrote: > Hi, > > I am using VLAN network mode and will connect eth1 and eth2 of my compute > node to the LAN Switch, and LAN switch will create individual VLAN IP > interface for each Tenant/VLAN and then route to the NAT equipment,through > SNAT/DNAT to touch internet. So, that needs I can set the default gateway of > each Tenant VLAN to the different IP address of VLAN interface on the switch.
I have the same question, I would love to know if you can set the gateways in VLAN mode. > > For example, my first tenant(auto0Tenant) is at VLAN200/br200/eth1/fix_ip > range is 192.168.2.0/28 and second(aotu1Tenant) is > VLAN300/br300/eth2/fix_ip_range 192.168.3.0/28, the VLAN interface ip address > for them on switch is 192.168.2.9 and 192.168.3.9, I want to set the default > gateway of VMs in auto0Tenant to 192.168.2.9 and 192.168.3.9 for > aotu1Tenant’s VMs. > > I try to use two methods, the first is to use nova-command: > > nova-manage network create --label=auto0Tenat --fixed_range_v4=192.168.2.0/28 > --num_networks=1 --gateway=192.168.2.9 --dns1=61.139.2.69 --vlan=200 > --bridge=br200 --bridge_interface=eth1 --network_size=16 --multi_host=T > --project_id=5f9281bca6854fe3974a457d81afd78c > > nova-manage network create --label=aotu1Tenant > --fixed_range_v4=192.168.3.0/28 --num_networks=1 --gateway=192.168.3.9 > --dns1=61.139.2.69 --vlan=300 --bridge=br300 --bridge_interface=eth2 > --network_size=16 --multi_host=T --project_id=5f9281bca6854fe3974a457d81afd78c > > but the result is the newest created VM default gateway is still the IP > address of br200 or br300 by the system, that means the factor of “gateway” > and “dns1” in nova-mange network command did not work. > > The second way is to use dnsmasq.conf that Vish told me, that I set just > dhcp_option=3,192.168.2.9. Yes it is useful for auto0Tenat VLAN, it can set > auto0Tenant gateway to 192.168.2.9, but how to set others at the same time? > > Then I tried to use: > > Interface=vlan200 > dhcp_option=3,192.168.2.9 > > Interface=vlan300 > dhcp_option=3,192.168.3.9 > Does it actually work to specify multiple interfaces in the dnsmasq conf file like that? I would have thought that the second values would override the first ones. Take care, Lorin -- Lorin Hochstein Lead Architect - Cloud Services Nimbis Services, Inc. www.nimbisservices.com
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