I have just forgotten to enable forwarding ....
Thanks to Andrew Gillham

On 28/12/01 22:28, Frederick Bruckman (fredb@immanent.net) wrote:

> On Fri, 28 Dec 2001, Jean-Edouard BABIN wrote:
> 
>> I have tried this in /etc/ipnat.conf :
>> 
>> map tl0 192.168.0.0/24 -> 62.2.186.251/32
> 
> What this does, is every packet that goes out on tl0 with a source
> address of 192.168.0.x will have that source address re-written, to
> 62.2.186.251...
> 
>> map tl0 192.168.0.0/24 -> 62.2.186.251/32 proxy port ftp ftp/tcp
>> map tl0 192.168.0.0/24 -> 62.2.186.251/32 portmap tcp/udp 1025:65535
> 
> ...so these rules never get reached for any particular packet.
> 
>> (then I did ipnat -f /etc/ipnat.conf)
>> 
>> And this not work but I don't know if I can do that because 192.168.0.1 is
>> an alias:
> 
> You only have one interface on the NAT box? That makes it very difficult
> or impossible to use NAT. With the rules above, which would be the
> natural way to use NAT with two interfaces (if tl0 were the external
> interface), you will be re-writing the source address of every outgoing
> packet from the NAT host, even packets from 192.168.0.1 to 192.168.0.2!
> 
>> tl0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>>         address: 00:80:5f:35:55:67
>>         media: Ethernet autoselect (10baseT)
>>         status: active
>>         inet 62.2.186.251 netmask 0xffffff80 broadcast 255.255.255.255
>>         inet alias 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255
>> 
>> And I want to access to the net from a computer with ip 192.168.0.2
> 
> Try this:
> 
> map tl0 192.168.0.2/32 -> 62.2.186.251/32 proxy port ftp ftp/tcp
> map tl0 192.168.0.2/32 -> 62.2.186.251/32 portmap tcp/udp 1025:65535
> map tl0 192.168.0.2/32 -> 62.2.186.251/32
> 
> Frederick
> 
> 

-- 
   Jean-Edouard BABIN
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