transparent udp proxy

[Adrian Chadd]

Hi,

If it's missing in 10 or later then please file a bug and I'll see
what it'll take to add another socket option to return the original
destination address+port.

Thanks,


-adrian

On 31 October 2014 08:00, Hooman Fazaeli <hoomanfazaeli at gmail.com> wrote:
> On 10/31/2014 5:30 PM, Mark Felder wrote:
>>
>> I'm not sure if this is what you're looking for, but perhaps the
>> solution is in net/samplicator ?
>>
>>  From the project's website:
>>
>> This simple program listens for UDP datagrams on a network port, and
>> sends copies of these datagrams on to a set of destinations. Optionally,
>> it can perform sampling, i.e. rather than forwarding every packet,
>> forward only 1 in N. Another option is that it can "spoof" the IP source
>> address, so that the copies appear to come from the original source,
>> rather than the relay. Currently only supports IPv4.
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>
>
> Thanks. I do not thinks it provides what I am looking for.
>
> I am not looking for an application performing a specific task, but a
> mechanism
> to get the __original__ destination address and port of packets forwarded to
> a
> local UDP proxy by ipfw fwd rules. As I figured it out until now, The
> original destination
> address may be obtained by IP_RECVDSTADDR on 9.0+ (but not on 8.x and older
> versions) but
> there seems to be no mechanism get the _original_ destination _port_ (Apart
> from this
> missing mechanism, my proxy is functional and performs what it is intended
> to do).
>
>
> --
>
> Best regards.
> Hooman Fazaeli
>
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