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Allowing a single host to send to another XG broadcast address

JasonSalomons

Hi All,


I have a single server on my DMZ that needs to send packets at a broadcast address on port 56700 on my LAN interface. The broadcast address is obviously in a different subnet.

I verified that the packet is leaving the server, but the XG isnt processing it I suspect due to the amplification nature.

In this instance, I need to ensure it is able to send. How can we acheve this?

I tried to create a business rule, where I send a packet to my local DG of the DMZ, and have it forward to the real broadcast address but this isnt work either.



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  • 0

    Hi All,


    Any suggestions? This is causing me trouble and Id like to implement some kind of workaround here.

    Thanks

  • 0 in reply to JasonSalomons

    Hi JasonSalomons, 

    As you are connecting 2 different networks to the XG appliance , it must have been configured as a Layer3 or Gateway/Router setup.  For information on Broadcast packets, the first thing to understand to answer your questions is that limited broadcast frames are not routed. By default when a router receives a frame with a destination address that is broadcast at either layer 2 or layer 3, the router simply drops the frame. That's why routers are said to be the boundary of broadcast domains.

    You may configure Static Route  or Multicast Route on XG .  You may refer the article https://community.sophos.com/kb/en-us/123135 for configuration of Multicasting Routing.

    So if you wish to communicate through a Firewall. You may need to configure the same . 

    Thanks and Regards 

    Aditya Patel  | Network and Security Engineer.

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  • 0 in reply to JasonSalomons

    Hi JasonSalomons, 

    As you are connecting 2 different networks to the XG appliance , it must have been configured as a Layer3 or Gateway/Router setup.  For information on Broadcast packets, the first thing to understand to answer your questions is that limited broadcast frames are not routed. By default when a router receives a frame with a destination address that is broadcast at either layer 2 or layer 3, the router simply drops the frame. That's why routers are said to be the boundary of broadcast domains.

    You may configure Static Route  or Multicast Route on XG .  You may refer the article https://community.sophos.com/kb/en-us/123135 for configuration of Multicasting Routing.

    So if you wish to communicate through a Firewall. You may need to configure the same . 

    Thanks and Regards 

    Aditya Patel  | Network and Security Engineer.

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