Hi All,
I have a working GRE connected between one kvm host ovs 1.11 and
xenserver ovs 1.4.6
I have created an *isolated* bridge and connected virtual interface to
isolated bridge with private ip ,and then added *gre0* port by mentioning
remote public IP.
Everything is fine, dont have any issues :)
For understanding it better
tried tcpdump on isolated bridge i am not able find anything other than ARP
request
*tcpdump -i isolated -n not port 22 -v*
> tcpdump: listening on isolated, link-type EN10MB (Ethernet), capture size
> 65535 bytes
> 21:31:06.304223 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has
> 10.168.122.10 tell 10.168.122.200, length 28
so used dump-flows on ovs 1.4.6
ovs-dpctl dump-flows isolated|grep -v 'src=22' |grep -v 'dst=22'
in_port(3),eth(src=ae:0a:5e:8a:cc:2b,dst=52:54:00:bb:86:99),eth_type(0x0800),ipv4(src=10.168.122.200,dst=10.168.122.10,proto=1,tos=0,ttl=64,frag=no),icmp(type=8,code=0),
packets:0, bytes:0, used:never, actions:*1*
in_port(1),eth(src=52:54:00:bb:86:99,dst=ae:0a:5e:8a:cc:2b),eth_type(0x0800),ipv4(src=10.168.122.10,dst=10.168.122.200,proto=1,tos=0,ttl=64,frag=no),icmp(type=0,code=0),
packets:0, bytes:0, used:never, actions:*3*
>From this if i understand correctly ovs is outputting to port 1 which is
*gre0* with remote ip .But i don't understand
1.how packets go from *gre0* through bridge *kvmbr0* in which NIC is
bridged.
and
2. tcpdump not showing any packets in isolated bridge.
Can some one please help me understand this better or point to some
documentation
Regards,
kevin
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