ssh tunnel across 3 systems possible?

From MYPC I can ssh (using cygwin or putty) to a linux box LBONE (i am not
root) then from there I can ssh to LBTWO another linux box where I am root.

Once the connection is made, on MYPC i set up a route as follows...

route add LBTWO mask 255.255.255.255 MYPC metric 1

OK, I can ping LBTWO from MYPC but unfortunately, that is about all I can
do. I cannot even ssh to it. At a minimum I would like to ssh.

I have an server running on LBTWO that talks on port 12345 and I can put a
client on LBONE that works fine. Now I want to run the client on MYPC which
is two removed from LBTWO.

I thought if I could try something like this from LBTWO

ssh -L 12345:MYPC:12345 LBONE_REVERSE -l username

the ip address of LBONE from LBTWO is not the same backward, slightly
different.

I think if I could directly ssh to that LBTWO system from MYPC then I could
get things working. Can this be made to work? Maybe there is a firewall
on LBONE. How can I tell?


...TIA..


--
================================================== =====================
Beemer Biker (E-Mail Removed)
http://TipsForTheComputingImpaired.com
http://ResearchRiders.org Ask about my 99'R1100RT
================================================== =====================

> route add LBTWO mask 255.255.255.255 MYPC metric 1
---------------------------------------^^^^
sorry, my typo, was actually LBONE, the first linux box
pinging actually works, but ssh to LBTWO does not.

Beemer Biker wrote:
> From MYPC I can ssh (using cygwin or putty) to a linux box LBONE (i am not
> root) then from there I can ssh to LBTWO another linux box where I am root.
>
> Once the connection is made, on MYPC i set up a route as follows...
>
> route add LBTWO mask 255.255.255.255 MYPC metric 1
>
> OK, I can ping LBTWO from MYPC but unfortunately, that is about all I can
> do. I cannot even ssh to it. At a minimum I would like to ssh.
>
> I have an server running on LBTWO that talks on port 12345 and I can put a
> client on LBONE that works fine. Now I want to run the client on MYPC which
> is two removed from LBTWO.
>
> I thought if I could try something like this from LBTWO
>
> ssh -L 12345:MYPC:12345 LBONE_REVERSE -l username
>
> the ip address of LBONE from LBTWO is not the same backward, slightly
> different.
>
> I think if I could directly ssh to that LBTWO system from MYPC then I could
> get things working. Can this be made to work? Maybe there is a firewall
> on LBONE. How can I tell?
>
>
> ..TIA..
>
>

How is this set up? I would imagine it would be something like;

|---|
[Mypc]---------[eth0 on PCONE] [eth1 on PCONE]-----------------[PCTWO]


(They all have static ip's, crossover cable used everywhere)


Correct that if it's wrong.


Anyway, if ping requests work, it's probably just a firewall on PCONE
blocking ssh across the two networks. Make sure everything is set up on
PCONE correctly.

hih,
poly-p man

P.S.
You didn't REALLY name your computers like that?