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Nat with public addresses

abdnour ouazzani

hello

we have just changed the provider of the internet, he sent us addresses lan @ / 30 and wan @ / 30. the problem is how to do the Nat to connect to the internet with the public ip addresses provided by the provider internet.

Wé use sophos xg.



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  • 0

    Hi,

    a /30 for internal will not give you many devices eg 2 only. If you need to match the internal to the external on a one for one basis you will need a full nat for each address and a seperate rule for each address.

    That does seem like an odd allocation, are you sure they didn't give you a /28 for internal use which would be more realistic?

    Ian

  • 0 in reply to rfcat_vk

    Hi.

    Thank you for your answer.

    for more details lan between Sophos and provider  is / 30 one address that will be assigned to one of the sophos interfaces and the other is the gateway and for the wan (/ 30) so we have two addresses to use for the nat

    I tried with cisco router and it worked and with Sophos xg I don't know how to do.

    thank you

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  • 0 in reply to rfcat_vk

    Hi.

    Thank you for your answer.

    for more details lan between Sophos and provider  is / 30 one address that will be assigned to one of the sophos interfaces and the other is the gateway and for the wan (/ 30) so we have two addresses to use for the nat

    I tried with cisco router and it worked and with Sophos xg I don't know how to do.

    thank you

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