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NAT UDP packets to internal Broadcast-Address?

Akisu
System UTM220 FW: 8.310

Some sort of special question.

Is it possible to NAT UDP traffic to an internal broadcast address?

Explanation we receive UDP packets on an public IP of he UTM and want to use these packets on all clients in an internal private network. I tried this NAT-configuration: 
 --> DNAT --> 192.168.0.255 (this is a host with the IP .255 not the Interface-Broadcast. Interface-Broadcast of the internal net is not useable). 
It does not work. Is there a way?


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  • 0
    No, it's no possible. DNATs are by design limited to a single host as tanslation destination.

    ----------
    Sophos user, admin and reseller.
    Private Setup:

    • XG: HPE DL20 Gen9 (Core i3-7300, 8GB RAM, 120GB SSD) | XG 18.0 (Home License) with: Web Protection, Site-to-Site-VPN (IPSec, RED-Tunnel), Remote Access (SSL, HTML5)
    • UTM: 2 vCPUs, 2GB RAM, 50GB vHDD, 2 vNICs on vServer (KVM) | UTM 9.7 (Home License) with: Email Protection, Webserver Protection, RED-Tunnel (server)
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  • 0
    No, it's no possible. DNATs are by design limited to a single host as tanslation destination.

    ----------
    Sophos user, admin and reseller.
    Private Setup:

    • XG: HPE DL20 Gen9 (Core i3-7300, 8GB RAM, 120GB SSD) | XG 18.0 (Home License) with: Web Protection, Site-to-Site-VPN (IPSec, RED-Tunnel), Remote Access (SSL, HTML5)
    • UTM: 2 vCPUs, 2GB RAM, 50GB vHDD, 2 vNICs on vServer (KVM) | UTM 9.7 (Home License) with: Email Protection, Webserver Protection, RED-Tunnel (server)
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