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From Jayapal Reddy <jayapalati...@gmail.com>
Subject Re: Fail to send TCP SYN Ack message
Date Wed, 12 Aug 2015 01:57:01 GMT
Can you please send iptables rules on VR 'iptables -t nat -L -nv' . also do
tcpdump on the interface to see whether it is routing or nat issue.
On 10 Aug 2015 5:57 pm, "罗冲((深圳联友科技有限公司 信息技术中心 新技术应用领域))"
<
luochong@szlanyou.com> wrote:

> Hi all,
>
> Cloustack version:  4.2
> Hypervisor:  vmware
> Static NAT Config:
>             0.0.0.0/0                ICMP                      -1    -1
>             0.0.0.0/0                UDP                         1
> 65535
>             0.0.0.0/0                TCP                           1
>   65535
> OS:  CentOS 6.2 64bits
>
> Scenario:
>       1) Create one vritual machine though Cloudstack
>       2) Config the static NAT  and log in this virtual machine.
>       3)  Running the TCP Server in this virtual machine
>       4)   another real machine as TCP client.   (The two machines can be
> ping)
>  I found The TCP connection could not be created.
>
> With tcpdump, i can capture the tcp SYN message from client  in server
> machine.
> 06:16:35.940145 IP 172.26.228.81.53506 >
> 36f99eab-d7c8-4e14-b1fb-221e3d15aac7.dnp-sec: Flags [S], seq 898177152, win
> 14600, options [mss 1460], length 0
>
> but the server fail to reply SYN ACK message to client.
>
>
>
> Thanks &  Regards
>
>
>
>
>
> luochong@szlanyou.com

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