Help: Cisco 2621 and NAT/Masq ?? urgent please

Discussion in 'Cisco' started by Mag, Oct 12, 2008.

  1. Mag

    Mag Guest

    Hi

    i have a small problems, i want access to a server in LAN, i have a
    Cisco 2621 router with:
    One fastethernet connected to internet
    one fastethernet connected to the lan

    We want access to the server 172.20.2.10 but he don't have gateway,
    i am search the solution for:

    On port 22 only !

    Internet <==> C2621 Public Ip <==> C2621 Lan <==> Linux Server

    because the linux server don't have gateway, we want a Nat for he answer
    to the lan interface of my cisco 2621

    it's possible ?
    if yes what is the configuration ?

    thanks
    Mag
    Mag, Oct 12, 2008
    #1
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  2. Mag

    alexd Guest

    On Sun, 12 Oct 2008 11:54:01 +0200, Mag wrote:

    > because the linux server don't have gateway, we want a Nat for he answer
    > to the lan interface of my cisco 2621
    >
    > it's possible ?


    It may well be possible to NAT the traffic in such a way that appears to
    originate from the 2621, but surely a much better idea would be to give
    the linux server a gateway?

    --
    <http://ale.cx/> (AIM:troffasky) ()
    17:07:26 up 8 days, 6:04, 1 user, load average: 0.06, 0.09, 0.08
    They call me titless because I have no tits
    alexd, Oct 12, 2008
    #2
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  3. Mag

    Mag Guest

    alexd a écrit :
    > On Sun, 12 Oct 2008 11:54:01 +0200, Mag wrote:
    >
    >> because the linux server don't have gateway, we want a Nat for he answer
    >> to the lan interface of my cisco 2621
    >>
    >> it's possible ?

    >
    > It may well be possible to NAT the traffic in such a way that appears to
    > originate from the 2621, but surely a much better idea would be to give
    > the linux server a gateway?
    >


    No ;=) because the server are at 2000Km of me .. i can access it for
    change passerelle
    Mag, Oct 12, 2008
    #3
  4. Mag

    Mag Guest

    Gabriele Beltrame a écrit :
    > "Mag" <> ha scritto nel messaggio
    > news:48f22203$0$22392$...
    > | alexd a écrit :
    > | > On Sun, 12 Oct 2008 11:54:01 +0200, Mag wrote:
    > | >
    > | >> because the linux server don't have gateway, we want a Nat for he
    > answer
    > | >> to the lan interface of my cisco 2621
    > | >>
    > | >> it's possible ?
    > | >
    > | > It may well be possible to NAT the traffic in such a way that appears to
    > | > originate from the 2621, but surely a much better idea would be to give
    > | > the linux server a gateway?
    > | >
    > |
    > | No ;=) because the server are at 2000Km of me .. i can access it for
    > | change passerelle
    >
    > Hi,
    >
    > "ssh" into the server from the router.
    >
    > Regards,
    > Gabriele Beltrame
    >
    >



    Hi, for access to the server, a ssh key file are requiered ... we can
    specify it ?
    Mag, Oct 12, 2008
    #4
  5. Mag

    Mag Guest

    Gabriele Beltrame a écrit :
    > "Mag" <> ha scritto nel messaggio
    > news:48f22203$0$22392$...
    > | alexd a écrit :
    > | > On Sun, 12 Oct 2008 11:54:01 +0200, Mag wrote:
    > | >
    > | >> because the linux server don't have gateway, we want a Nat for he
    > answer
    > | >> to the lan interface of my cisco 2621
    > | >>
    > | >> it's possible ?
    > | >
    > | > It may well be possible to NAT the traffic in such a way that appears to
    > | > originate from the 2621, but surely a much better idea would be to give
    > | > the linux server a gateway?
    > | >
    > |
    > | No ;=) because the server are at 2000Km of me .. i can access it for
    > | change passerelle
    >
    > Hi,
    >
    > "ssh" into the server from the router.
    >
    > Regards,
    > Gabriele Beltrame
    >
    >


    i don't have ssh choice on my ios ;)
    Mag, Oct 12, 2008
    #5
  6. Mag

    Mag Guest

    Gabriele Beltrame a écrit :
    > "Mag" <> ha scritto nel messaggio
    > news:...
    > | Gabriele Beltrame a écrit :
    > | > "Mag" <> ha scritto nel messaggio
    > | > news:48f22203$0$22392$...
    > | > | alexd a écrit :
    > | > | > On Sun, 12 Oct 2008 11:54:01 +0200, Mag wrote:
    > | > | >
    > | > | >> because the linux server don't have gateway, we want a Nat for he
    > | > answer
    > | > | >> to the lan interface of my cisco 2621
    > | > | >>
    > | > | >> it's possible ?
    > | > | >
    > | > | > It may well be possible to NAT the traffic in such a way that
    > appears to
    > | > | > originate from the 2621, but surely a much better idea would be to
    > give
    > | > | > the linux server a gateway?
    > | > | >
    > | > |
    > | > | No ;=) because the server are at 2000Km of me .. i can access it for
    > | > | change passerelle
    > | >
    > | > Hi,
    > | >
    > | > "ssh" into the server from the router.
    > | >
    > | > Regards,
    > | > Gabriele Beltrame
    > | >
    > | >
    > |
    > | i don't have ssh choice on my ios ;)
    >
    > Hi,
    >
    > You can try enabling proxy-arp then.
    >
    > Regards,
    > Gabriele
    >
    >




    do you have a sample of the configuration ?
    Mag, Oct 12, 2008
    #6
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