Re: [Iometer-user] dynamo via nat question...

[Ian <io...@ze...>]

Ah, okay... so dynamo uses two ports, one for outgoing and one for
incoming.  Any idea why?  I know bi-directional communication is possible
with one port (I.E. http).    Wonder if there's an iptables plugin for th=
e
iometer protocol like there is for ftp...

I guess adding upnp support would be fluff.

Anyway, since the remote linux server doesn't know about the dynamic
listener port, the problem was the firewall on the remote linux server no=
t
letting iometer communicate back to the dynamo.

The two ports is also the reason why the ssh tunnel failed... I'd have to
create an additional tunnel for that second port.

Thanks for your help.

> it is a pretty tricky question. ;)
>
> the login process between iometer and dynamo is like this.
>
> iometer listen on 1066 by default. dynamo connect to iometer, dynamo
> tell iometer a port that dynamo will listen on, iometer connect to the
> port.
>
> so if your NAT already set to redirect the traffic to iometer box, it i=
s
> quite strange that it can not connect back via "./dynamo -i nat_ip -m
> dynamo_box_ip".
>
> ming
>
>
> On Tue, 2006-08-29 at 15:40 -0700, Ian wrote:
>> Currently running 2006.07.27-RC2 of both iometer and dynamo.
>>
>> iometer runs on a windows workstation that is behind a NAT'ed network
>> (192.168.0.0/24).
>> dynamo runs on a linux server that's directly connected to the interne=
t.
>>
>> I'm trying to get dynamo to connect to iometer without iometer hard
>> locking.
>>
>> So far, I've tried portforwarding, and dynamo shows a successful
>> connect,
>> but iometer hard locks.
>> (on the server that does the NAT for the windows workstation)
>> -A PREROUTING -i eth1 -p tcp -m tcp --dport 1066 -j DNAT --to
>> 192.168.0.200
>> ./dynamo -i nat.server -m ip.address.of.internet.interface -n
>> remote-linux
>>
>> I've also tried tunneling via ssh, but the same thing happens:
>> plink -ssh -R 127.0.0.1:1066:127.0.0.1:1066 remote.linux.server.com
>> ./dynamo -i 127.0.0.1 -m 127.0.0.1 -n remote-linux
>>
>> Is there another way to circumvent NAT that iometer will work happily
>> with?  Should I be using an older version of iometer?
>>
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>
>