[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Firewall Bypassing



On Wed, 17 Jun 1998, Miki Shapiro wrote:

> Hi guys
> I read the IPIP (Tunneling) readme 

Me too ;)

> I want to establish a tunneling encap server somewhere and a decap
> server at home - thus de facto adding my home network to a foreign
> network. 
> so far so good.
> Problem is Im behind a firewall.

Problem is, the other side should be Linux and you should have access to a
compiler. Not anyone will let you do that. Or, to put it otherwise, if
they let you do that, then they know you so well, that they let you have a
domain/fixed IP instead. This you could use with usual tools even if you
connect temporarily (it is a dynamic routing problem).

> I can establish a tunnel from home to the remote host with no problem,
> but I cant open a tunnel from that host to my home.
> Is there any way i can open and sustain (and in case it falls - reopen)
> a session with the remote router (the one PHYSICALLY connected to the
> network i want to belong to) from the firewalled machine and have the IP
> tunnel from the router run through that session?

Maybe you must open the port for ipip to connect to in the firewall ? And
if not, then you can probably hack ipip to use the same method as passive
FTP, with the machine behind the firewall sending out the port number to
connect to.

maybe there is another way though,

	Peter