ssh to my computer behind NAT

[Hiisi]

2010/3/9 Rick Sewill <rsewill at gmail.com>:
> On Tue, 2010-03-09 at 00:49 +0300, Hiisi wrote:
>> Dear list!
>> I would like to be able to ssh to my home computer located behind my
>> ISP' NAT. I know, I can tunnel to it through some middle host and
>> actually I'm doing it at the moment. But I'm fancy is there a better
>> solution? Is there a possibility of not using any computer at the
<--SNIP-->
>
> If it's a company gateway, we mustn't help you defeat their security.
>
> I don't want to discuss whether having a gateway adds to security.
> Personally, I believe all devices in the internal LAN must be secure.
> I do not believe security can be done solely at the border of a LAN.
>
> Do you control the device that is doing NAT for you or does the ISP?
> If controlled by the ISP, did the ISP provide a way to configure it?
>
> As others have said and will say, one needs to have the NAT device
> port forward the appropriate port (whatever port you use for ssh)
> to your host.
>
>

You and other, thank for your responses. Sorry I didn't make it clear.
I don't have any router. I'm connected to Internet via LAN. My IP
address is something like 192.168.3.20 and I use ISP' router IP
(192.168.0.1) as a gateway (I don't have any access to the router).
So, I decided its called NAT. Am I wrong here? I don't know. I know
only that I can't reach my computer from the outside of the LAN. So, I
did the following: on the target computer I ran:
ssh -R 10002:localhost:22 user at middle.host (it's a computer somewhere
and I have ssh access there)
Now I can connect to the target computer in a few steps:
1. connect to middle.host:
ssh user at middle.host
2. and from there:
ssh Hiisi at home.computer -p 10002
See, it's not very convenient and I'm not sure whether it's possible
to use VNC using this setup (as I would like to).  So, is there any
better solution?
-- 
Hiisi.
Registered Linux User #487982. Be counted at: http://counter.li.org/
--
Spandex is a privilege, not a right.