Okay, just to make sure I got everything straight...
Private Network A
Cable/DSL Router Internal IP: 192.168.123.254
External IP: 63.299.240.33
CIPE Gateway A: IP Address: 192.168.123.110
PTP Addr: 192.168.20.1
Machine A: IP Address: 192.168.123.20
Private Network B
Cable/DSL Router Internal IP: 192.168.1.254
External IP: 220.127.116.11
CIPE Gateway B: IP Address: 192.168.1.20
PTP Addr: 192.168.20.2
Machine B: IP Address: 192.168.1.70
I can ping from CIPE Gateway on Private Network A to CIPE Gateway on
Private Network B.
Now to allow CIPE Gateway A to ping Machine B, I have to add a route on CIPE
Gateway A that looks like this:
route add 192.168.1.0 mask 255.255.255.0 192.168.20.1
and on the machine in network B
route add 192.168.123.0 mask 255.255.255.0 192.168.1.20
Is that right? Finally, did you mean that I should set the gateway address
for Machine A to be the IP Address of the CIPE Gateway (192.168.123.110)???
And do the corresponding thing for the Machine B in private network B???
On 3/29/02 2:51 PM, "Yves Smolders" <yves.smolders,AT,pandora,DOT,be> wrote:
>> 192.168.20.1 is CIPE Gateway A PTP addr
>> 192.168.1.* is private network B's address range.
> I presume you have Cipe gateway B PTP in the same range? if B range is 1.*
> your route add should have netmask 255.255.255.0
> The machines on your network A should have as gateway the internal IP of the
> cipe gateway A (I presume that would be 192.168.0.x or something) if you
> have another router (e.g. internet access router is not cipe gateway) you
> should point the gateway of the net to the router and add a static route to
> the router for 192.168.1.* to the cipe IP. quite a few hops, but if your
> router sends ICMP redirects back, all your machines will learn to route 1.*
> traffic to cipe directly.
> Alternative is adding both routes, internet & cipe to each machine, or use
> Also what is almost always forgotten in routing is the route back! Make
> routes at gateway B back to the other net - if you don't your pings don't
> get back.
> And of course first of all try pinging 192.168.20.1 to gateway b
> 192.168.20.x - if that doesn't work, nothing will :-)
>> I thought that this should route any traffic on CIPE Gateway A targeted
>> private network B through the CIPE tunnel. But it just screws things up.
> Probably the route back. My customers forget it all the time with port
> forwarding on their adsl routers: they open a port up to an internal server
> and it doesn't work because gateway on the internal machine is not set to
> the router's address.
>> This is possible right? I'm not insane, right?
> Nope :-)
>> Please help,
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