Thanks Ben. Why would dhclient requests destined to eth0 would be seen at eth1? And why would br0 (with mac address A) would use a dhcp release destined to mac address B?
Y. On Thu, Dec 5, 2013 at 9:41 PM, Ben Pfaff <b...@nicira.com> wrote: > On Wed, Dec 04, 2013 at 04:01:16PM -0800, Yiannis Yiakoumis wrote: > > I run ovs at an AP and observe some weird dhcp behavior. > > > > The AP has two ports (WAN -> eth0, LAN -> eth1). Only the wan port is > under > > ovs; the LAN is not, and there is also no cable attached to it. OVS is > > configured for in-band control. > > > > br0 inherits the MAC address of the wan interface. My DHCP server has > > static MAC-based configuration for the wan address and my rest-of-network > > configuration ensures that packets from the WAN interface will only go in > > this server. Occasionally, I observe the following behavior : > > > > When the AP boots and before I get any connection to the controller, I > see > > dhcp requests coming out from both MAC addresses (WAN and LAN). > > I think that's the default behavior of dhclient, when invoked without > any command line arguments: it sends out a DHCP request on every > interface. But if you tell it a particular interface, it only sends a > request on that interface. > -- Yiannis .
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