[Netstack] About gre flow of OVSQuantumTunnelAgent

[Yong Sheng Gong]

Hi,
I have tried to run  OVSQuantumTunnelAgent with two compute hosts. But VM on hostb cannot get ip from dhcp server on hostb. I found the br-tun has the flows set:
[root@robinlinux ~]# ovs-ofctl show br-tun
OFPT_FEATURES_REPLY (xid=0x1): ver:0x1, dpid:0000b2dea5b34a44
n_tables:255, n_buffers:256
features: capabilities:0xc7, actions:0xfff
 1(patch-int): addr:aa:c9:ac:8c:be:a8
     config:     0
     state:      0
 2(gre-0): addr:76:4c:ca:ca:61:1c
     config:     0
     state:      0
 3(gre-1): addr:52:91:f7:6c:08:57
     config:     0
     state:      0
 LOCAL(br-tun): addr:b2:de:a5:b3:4a:44
     config:     PORT_DOWN
     state:      LINK_DOWN
OFPT_GET_CONFIG_REPLY (xid=0x3): frags=normal miss_send_len=0
[root@robinlinux ~]# ovs-ofctl dump-flows br-tun
NXST_FLOW reply (xid=0x4):
 cookie=0x0, duration=66.985s, table=0, n_packets=0, n_bytes=0, priority=3,tun_id=0x2 actions=mod_vlan_vid:1,output:1
 cookie=0x0, duration=69.593s, table=0, n_packets=2, n_bytes=652, priority=4,in_port=1,dl_vlan=1 actions=set_tunnel:0x2,NORMAL
 cookie=0x0, duration=1884.901s, table=0, n_packets=449, n_bytes=145796, priority=1 actions=drop

It seems we have just flows for connection between br-int and br-tun, have no flows out/in for gre port. So all traffic on gre port are dropped by default rule 3#.

any thoughts?

Thanks

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