Re: Single NIC NAT?

[Malcolm Turnbull <malcolm@xxxxxxxxxxxxxxxx>]

OK I was being an idiot my client subnet had a typo...
All works fine now...
Are their any disadvantages to using one NIC ? (apart from not 
segregating broadcast traffic between the two networks.)


Joseph Mack wrote:
> Malcolm Turnbull wrote:
>
>
> > I've been looking at:
> > http://jc.mmu.edu.my/~v0114034/dokumentasi/lvsnat-documentation.html
>
> I wish people who wrote these things would drop me a note so I can reference
> them in the HOWTO. (I've just added it to the search list for htdig for the 
> HOWTO)
>
>
> > And on the test director I have :
> >
> > eth0:10.0.0.21/24
> > eth0:0 192.168.1.31/24
> >
> > Can you actualy do that? 
>
> yes. You've been able to do that since aliases came in, 
> which would be at least 8yrs ago
> the preferred method now is with iproute2, but the commands
> are more difficult to use (ie use ifconfig till it breaks)
>
>
> > How can one NIC be plugged into 2 different sub nets ?
>
> it just has to be told to accept packets for two IPs and reply to arp
> requests for two IPs etc.
>
>
> > Do I have to re-route packets from the firewall by MAC address or
> > something ?
>
> not quite sure what your setup is, but it will behave similarly to two
> NICS with the different addresses both plugged into the same switch/hub,
> so no, you don't have to do anything special. Just route by IP
>
> Joe

--


Regards,

Malcolm Turnbull.

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