Hi: thanks for your reply. you say the bridge interface should take the ip address, not the nic. that's important. i think i go to the wrong direction. i want nic (eth0,dummy0) to have ip address, not br0. it seems not what linux bridge designed to do... by the way, i found if i set mac address manually :(eg: arp -s 192.168.10.254 x:x:x:x:x:x), then i can ping 192.168.10.254 via eth0. but i can never make dummy0 work in any way.
Regards, tbsky 2006/11/18, Abel Martín <[EMAIL PROTECTED]>:
On 11/17/06, d tbsky <[EMAIL PROTECTED]> wrote: > Hi: > i want to bridge my eth0 interface to several dummy interface, like > vmware or xen did, > so i can request several dhcp ip address via several mac addresses. > but i am stuck in the first step: > assume my eth0 is 192.168.10.1, and it can ping 192.168.10.254. > ifconfig br0 up > brctl setfd br0 0 > brctl addif br0 eth0 > > now i can not ping 192.168.10.254 anymore. You might be having a routing problem. Check your routing table with ip route. > but if i set 192.168.10.2 to br0, i can ping 192.168.10.254. > and "dhclient eth0" can get ip addess from dhcp server(that surprise > me!!) Try dhclient br0. > i try to add dummy interface to br0, but dummy interface can not work, > like eth0. > "brctl showmac br0" give me may mac addresses, so i think bridging is > working. > > i think i must misunderstanding the brindge concept. When a nic is part of a bridge it's not supposed to have an address, is the bridge interface which has to. > can i keep eth0 work after it join br0? I think it does work, since it's the physical > thanks a lot for your help!! > One more thing: as you add interfaces to a bridge, the bridge MAC will change to the lowest MAC of the attached interfaces. Regards.
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