Re: VLAN with/and NATD

From: Tom Samplonius (tom_at_sdf.com)
Date: 07/26/03

  • Next message: Evren Yurtesen: "Re: VLAN with/and NATD" 
    Date: Sat, 26 Jul 2003 08:23:09 -0700 (PDT)
To: Evren Yurtesen <eyurtese@tekniikka.turkuamk.fi>

    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

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