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IP-Addresses and aliases - AIX

Hi I know it is possible to give a netadapter a ip-alias. But it is possible to take the original ip-address from one subnet and the alias from another subnet Thx in adv Friedhelm...

  1. #1

    Default IP-Addresses and aliases

    Hi

    I know it is possible to give a netadapter a ip-alias.
    But it is possible to take the original ip-address from one subnet
    and the alias from another subnet

    Thx in adv
    Friedhelm

    Friedhelm Neyer Guest

  2. #2

    Default Re: IP-Addresses and aliases

    On Sun, 03 Aug 2003 10:58:59 +0200, Friedhelm Neyer wrote:
    > Hi
    >
    > I know it is possible to give a netadapter a ip-alias. But it is possible
    > to take the original ip-address from one subnet and the alias from another
    > subnet
    why not.

    --
    Massimiliano.
    Massimiliano Adamo Guest

  3. #3

    Default Re: IP-Addresses and aliases

    .... ok, can you explain, how to do this, please ?
    Again, I have a subnet 164.32.215. (A) from which the alias should come
    and a subnet 10.193.60. (B) from which the base address should come.
    If I understand networking correct, every subnet must have a
    gateway/router. The gateway of first subnet A is 164.32.215.1 (I think)
    and the one from the second subnet (B) is 10.193.60.1.
    How can one NIC use two different gateways ?
    PLease explain

    Thx in advance
    Friedhelm

    Massimiliano Adamo wrote:
    > On Sun, 03 Aug 2003 10:58:59 +0200, Friedhelm Neyer wrote:
    >
    >
    >>Hi
    >>
    >>I know it is possible to give a netadapter a ip-alias. But it is possible
    >>to take the original ip-address from one subnet and the alias from another
    >>subnet
    >
    >
    > why not.
    >
    > --
    > Massimiliano.
    Friedhelm Neyer Guest

  4. #4

    Default Re: IP-Addresses and aliases

    > Again, I have a subnet 164.32.215. (A) from which the alias should come
    > and a subnet 10.193.60. (B) from which the base address should come.
    > If I understand networking correct, every subnet must have a
    > gateway/router. The gateway of first subnet A is 164.32.215.1 (I think)
    > and the one from the second subnet (B) is 10.193.60.1.
    > How can one NIC use two different gateways ?
    > PLease explain
    >
    It is not possible to have more than one default gw, but you can have as
    many net routes, as fitting into the routing table.

    A more specific route always has greater precedence over a less specific.
    A net route is created automatically with the netmask of the alias.
    No problem for the networks (A) and (B). If you want to reach (C) over (B)
    instead of the default gw in (A) simply create a network route using the gw
    of (B).
    This route will be used as long it's netmask is more specific as 255.0.0.0.

    You cannot get two ip addresses on the same MAC by DHCP.

    ---
    Uli


    Uli Link Guest

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