Thanks so much; one further question: I want my net to behave lake that: - each VLAN should have a gateway; - different VLANs must not communicate; - VMs and Internet should communicate;
is it possible to do that with fake bridges? Daniele > Date: Thu, 10 May 2012 12:35:29 -0700 > From: [email protected] > To: [email protected] > CC: [email protected]; [email protected]; > [email protected] > Subject: Re: [ovs-dev] Problem with fake bridges > > Daniele, you are being defeated by IP forwarding. This flow shows an > ICMP echo request coming in on vnet0 (port 3). OVS forwards it to > alpha-nic ("actions:1"): > > > in_port(3),eth(src=52:94:00:02:c7:1e,dst=1a:a6:65:bb:f7:82),eth_type(0x0800),ipv4(src=192.168.1.206,dst=192.168.2.166,proto=1,tos=0,ttl=64,frag=no),icmp(type=8,code=0), > > packets:16, bytes:1568, used:0.520s, actions:1 > > The kernel sees that the packet is destined for 192.168.2.x and > forwards it to beta-nic based on the following routing table entry: > > > 192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 beta-nic > > OVS then gets a second shot at the packet when it is received on > beta-nic (port 2). It quite reasonably then forwards it to vnet1 > ("actions:4"): > > > in_port(2),eth(src=02:b7:65:2b:e1:b6,dst=52:94:00:09:f7:1e),eth_type(0x0800),ipv4(src=192.168.1.206,dst=192.168.2.166,proto=1,tos=0,ttl=63,frag=no),icmp(type=0,code=0), > > packets:66, bytes:6468, used:0.052s, actions:4
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