VLAN with/and NATD

[Tom Samplonius]

On Sat, 26 Jul 2003, Evren Yurtesen wrote:

> Hi,
> I would like to have a machine with 2 ethernets 1 is for outside
> connection(internet) the other one is for inside connections(VLANs)
> 
> Now the problem is that I want to use NAT inside VLANs that, lets say I
> want to be able to use use 192.168.1.0/24 IP block in every VLAN and in
> different VLAN's the same IPs should be able to be used.

  If you use the single 192.168.1.0/24 for all your VLANs, and you do not
subnet it further, you don't really have multiple VLANs.  You just have
one.

> Does anybody have any suggestion how to do this? I would guess that I need
> multiple IP addresses in the outside interface but how do I map the VLAN
> interfaces to use those IPs with NAT?

  No, you can multiple internal interfaces without problem.  natd only
cares about traffic leaving and entering the external interface.  

> Evren

Tom