On Sun, Dec 16, 2001 at 09:26:30PM +0100, Boris K�ster wrote:
> I have a problem.
>
> hope# uname -a
> FreeBSD hope.hope 4.4-STABLE FreeBSD 4.4-STABLE #2: Fri Dec 14 14:59:52 CET
> 2006 (???)
>
> I have a BSD laptop on 192.168.0.3
>
> I have a BSD server 192.168.0.99
>
> I have a win2k server at 192.168.0.1
>
> I want to route telnet service on .99 to .3
> that means if you telnet from .1 to .99 the laptop answers on 3
>
> This feature requires ipfw/natd and I have made a kernel for this (IPFIREWALL,
> IPDIVERT)
>
> I don�t know how to continue, i tried this on the bsd server:
>
> /sbin/ipfw -f flush
> /sbin/ipfw add divert natd all from any to any via ed0
> /sbin/ipfw add pass all from any to any
> natd -interface ed0 -redirect_port tcp 192.168.0.3:telnet 192.168.0.99:telnet
>
> But without success.
The problem I see is this,
1) The Win2k machine tries to initiate a connection to the BSD
server,
192.168.0.1 -> 192.168.0.99 SYN
2) The BSD server rewrites the packet and sends its on its way,
192.168.0.1 -> 192.168.0.3 SYN
3) The BSD laptop gets the packet and sends back a response,
192.168.0.3 -> 192.168.0.1 SYN-ACK
4) The Win2k machine receives the packet, but since it hasn't tried
to initiate a connection to 192.168.0.3,
192.168.0.1 -> 192.168.0.3 RST
See the problem now?
--
"It's always funny until someone gets hurt. Then it's hilarious."
Crist J. Clark | [EMAIL PROTECTED]
| [EMAIL PROTECTED]
http://people.freebsd.org/~cjc/ | [EMAIL PROTECTED]
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