[ovs-dev] Port based SNAT support

Guru Shetty guru at ovn.org
Tue Nov 7 01:55:57 UTC 2017


You can use load-balancer with a single destination to achieve port NAtting.

On 6 November 2017 at 16:39, Manoj Sharma <manoj.sharma at nutanix.com> wrote:

> Hi Guru, Mickey,
>
>
>
> Does OVN currently support PORT based SNAT?  By looking at the code in
> ovn/lib/actions.c, it seems to be doing only IP based NAT.
>
> Can you please confirm?
>
>
>
> This is the NAT table entry:
>
>
>
> ovn-nbctl lr-nat-list R1
>
>
>
> TYPE             EXTERNAL_IP        LOGICAL_IP
> EXTERNAL_MAC         LOGICAL_PORT
>
> snat             public_ip      192.168.1.0/24
>
>
>
> When a VM in subnet 192.168.1.0/24 sends traffic to physical network, the
> source IP is getting translated to the “public_ip” but source port is left
> unchanged.
>
>
>
> Thanks
>
> Manoj
>


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