[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] xen vlans in domU
On Tue, Aug 03, 2010 at 03:48:00PM +0400, Alexander Kriventsov wrote: > 03.08.2010 15:43, Mark Adams ??????????: >> On Tue, Aug 03, 2010 at 02:27:44PM +0400, Alexander Kriventsov wrote: >>> 03.08.2010 14:18, Mark Adams ??????????: >>>> Hi, >>>> >>>> I used the instructions/scripts at the following link to do my VLAN's. >>>> Works pretty well! >>>> >>>> http://renial.net/weblog/ >>> >>> I think that vlanbr2 is bridge for vlan 2 and vlanbr3 for vlan 3. >>> If I want to use vlan 2 and vlan 3 in one domU I should write in config >>> vif = [ 'bridge=vlanbr2', 'bridge=vlanbr3' ] and in this domU I will get >>> two interfaces eth0 and eth1. Is it correct? >>> But I want to have another, I want to have on domU all these vlans on >>> one interface and configure it through vconfig. >> >> not tested but I don't see why it wouldn't work.... you could just >> manually add the extra vlans in to the network-bridge-vlan script, with >> lines like this >> >> vconfig add ${netdev} 2 >> vconfig add ${netdev} 3 >> vconfig add ${netdev} 4 >> >> etc... >> >> have you tried it? > > this will add separate interfaces on dom0? No I don't think so, it should send them all through on the 1 bridge. I'm not sure how you would split them off in the domU though. I recommend you try it out yourself and let us know! > >> >>> >>>> >>>> On Tue, Aug 03, 2010 at 07:49:03PM +1000, James Harper wrote: >>>>>> >>>>>> Hello. >>>>>> I'm trying to use vlan in domU, but have something strange: >>>>>> I created bridge on eth0. This interface was configured as trunk with >>>>>> vlan 300, 301. I use this bridge in my domU, and I can see tagged >>>>>> packets when run tcpdump in domU. Also I created interface on domU to >>>>>> work with vlan 300. On this interface I see untagged packets in vlan300. >>>>>> And everything looks fine. >>>>>> But when I'm trying to send out packets through interface with vlan300 >>>>>> something happen. On domU in eth0 interface i see that packet was tagged >>>>>> as vlan 300, but on dom0 I see that package doesn't have tag and sending >>>>>> to switch as untagged which is incorrect. >>>>>> >>>>>> Why does kernel remove tag from outgoing packets? >>>>>> Is anyone using trunk inside of domU? >>>>>> >>>>>> I'm using xen 3.4.3 on Centos 5.5 with kernel 2.6.18. >>>>>> >>>>> >>>>> I'm not sure I quite understand what you want to do, but I think you need >>>>> to use ebtables, in particular the 'broute' table, to tell Linux how you >>>>> want tagged packets to behave. One thing I was never able to do was to >>>>> tell Linux to place a copy of the tagged packet on one bridge so that I >>>>> could have a trunk to a DomU whilst simultaneously l2 routing packets to >>>>> their correct interfaces. >>>>> >>>>> James >>>> >>>>> _______________________________________________ >>>>> Xen-users mailing list >>>>> Xen-users@xxxxxxxxxxxxxxxxxxx >>>>> http://lists.xensource.com/xen-users >>>> >>> >>> >>> -- >>> Alexander Kriventsov > > > -- > Alexander Kriventsov _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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