[Openstack] gw-* interface
Salman Malik
salmanmk at live.com
Sat May 19 22:49:29 UTC 2012
Hi guys,
(Sorry for the previous post :S )
I had posted a question regarding bridges on OpenFlow list and got a terrific explanation from Reid, as shown below:
Hypervisor
+--------------------------------------------------------+ | |
+------ | -- iface <--------------------------------------+ | | | eth0 | |
| | | | {network} | | |
| | v | | | |
+------ | -- iface <---+ X------------------------> {IP stack} | | eth1 | |
| | ^ | | | bridge br1 | |
| | +---+ | | | v | | (internal) | |
| port --+ +-- port -- iface <------+ | | eth1 | | br1 br1 |
| | | VM 1 | | | | +-----+ |
| | +-- port -- iface -- | | | | | | tap1 tap1 +-----+ |
| | | | | | | VM 2 |
| | | +-----+ | | | +-- port -- iface -- | | |
| | | tap2 tap2 +-----+ | | +---+ |
| | +---------------------------------------------------------+
Now I need to fit the gateway inteface (gw-*) into this picture, which is bound to dnsmasq and gives out IP addresses to the new instances. Can someone help me with it ?
Also I need to know why doesn't 'ifconfig' show neither br-int nor an IP address for tap interfaces of the instances (although I can sees instances have an associated IP using dashboard) ?
Thanks,
Salman
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