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XG v18.5: MTA mode and alias IP addresses

My specific problem now is I can't get the MTA mode and alias IP addresses to work. Tried following the instructions in   and https://community.sophos.com/sophos-xg-firewall/f/recommended-reads/122602/sophos-xg-how-to-setup-mta-mode-when-you-have-multiple-wan-ports-or-alias-ip-addresses and I also followed the hint with the Alias IP in "Translated Source" and the recommendation "D-Wan can't be used for routing traffic through alias addresses!! It's only used if you have multiple uplinks/providers!" in the description RE: XG v18.05: MTA mode and alias IP addresses 

Can anyone please help me?

But it is not working.

NAT rule



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Parents Reply
  • Hi Dirk, thank you for your reply. As far as I know, SD-Wan can only be used when multiple Internet Service Providers (WAN-Ports) are available. Did I understand this correctly?

    Can I skip the "Create a SD-WAN Rule with Destination ANY and Service SMTP" point in the instructions and only execute the two commands below?

    set routing sd-wan-policy-route system-generate-traffic enable
    system route_precedence set static vpn sdwan_policyroute

    Do you see a risk here because the system is a production environment and I have no experience with SD-Wan. could i contact you directly about this?

    Best regards

    Fridolin

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