Hey Guys,

I'm helping a user here who is trying to get a NCD X-station to boot
through a MASQ box.  The NCD box works fine on the same external 
interface as the Linux box but he wants to put it behind the 
Linux box.


So far, this is what I have but I think there is more to it.

128.205.17.105 is the BOOTP server.

--
Ok, first thing, I beleive you need to add a broadcast 
re-direction on your linux box.  Remember, your 
remote machine doesn't have an IP address yet.
So, chage this to this:

From:
>UDP 128.205.17.105/69 > 192.168.1.2/69                         
>UDP 128.205.17.105/68 > 192.168.1.2/68                         
>UDP 128.205.17.105/67 > 192.168.1.2/67                         
>TCP 128.205.17.105/69 > 192.168.1.2/69                         
>TCP 128.205.17.105/68 > 192.168.1.2/68                         
>TCP 128.205.17.105/67 > 192.168.1.2/67                         

To:
UDP 128.205.17.105/69 > 255.255.255.255/69                         
UDP 128.205.17.105/68 > 255.255.255.255/68                         
UDP 128.205.17.105/67 > 255.255.255.255/67                         
TCP 128.205.17.105/69 > 255.255.255.255/69                         
TCP 128.205.17.105/68 > 255.255.255.255/68                         
TCP 128.205.17.105/67 > 255.255.255.255/67           


To be honest, I don't think this is the last of
it.  The reason is because that the NCD box
will first ARP out to the Linux box, then send 
out a BOOTP packet to 255.255.255.255 on the 
internal MASQed interface.  I'm not sure how 
to forward this 255.255.255.255 packet out the 
MASQ box's external interface to the BOOTP 
server.  I think we need something like a 
reverse-ipportfw program.

Next, even if bootp does connect to the box, 
the X-station will need to get an internal 
192.168.0.x address and not an external 128.205.105.x
address.  How can we configure this?  I imagine that 
this would be done directly on the bootp server..
no?  I imagine we could do it via a MAC address
of the NCD box but the BOOTP server would see the MAC 
of the Linux box and NOT of the NCD box.


Even with this running, we would then need to deal with 
X-windows port forwarding.  Blech.. slogging through it.

Any ideas?

--David
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|  David A. Ranch - Linux/Networking/PC hardware         [EMAIL PROTECTED]  |
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