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Masquerading Problem?

sophosdk
Hy, i have troubles with my sophos utm. Behind my sophos firewall there is an Windows 2011 SBS. When i try to open OWA from internal network (with public fqdn) connection times out. From internet it works without problems. 

The DNS - Resolve from internal network to this host works too.

Is there a problem with masquerading?

Thanks


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    Morning,

    Accessing a internal server by it's external IP (or FQDN resolving to external IP) requires a full NAT to work properly.

    Masquerading is only intended for source NATing connections where you don't know ahead of time which interface will be used for routing the connection.
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    Morning,

    Accessing a internal server by it's external IP (or FQDN resolving to external IP) requires a full NAT to work properly.

    Masquerading is only intended for source NATing connections where you don't know ahead of time which interface will be used for routing the connection.
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