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How to enable other physical ports for basic LAN access like a switch

Lowell Picklyk

On an XG 125 there are 8 ports and I need to enable one additional port with LAN access but no IP assigned to it.  That is, I want it to behave like a switch on the LAN, like we might find on a basic router (extra ports used as LAN switch).  What's the best way of going about this?  Seems I'm required to assign an IP but I don't want that port to have an IP.



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  • 0

    Hi Lowell,

     

    You can check this out: https://community.sophos.com/kb/en-us/123098 

     

    The KB here would guide you to configure your XG as per your described requirement.

     

    Kindly let us know how it goes, 

     

     

    Regards,

     

    Rap

  • 0 in reply to Ashen1

    Thanks for the rapid response, !  I suspected a bridge would be needed, but then got thrown off by an IP still being needed.  So this IP for the bridge can't be the same as the firewall's LAN IP?  And if it's got to be something different how does that IP really affect anything? 

  • 0 in reply to Lowell Picklyk

    When creating a bridge, you will only need a single interface IP eg. Port 1 - 172.16.16.16 /24  and let's say you will bridge Ports 2 and 3 to Port 1, with this example an additional IP is not needed anymore, they will use the same IP and subnet of Port 1, and the bridged interface/s will be as a Layer 2

     

    hope it helps, let us know how it goes.

     

     

    Regards,

     

    Rap

  • 0 in reply to Ashen1

    You make sense, but when going to create a new bridge the IPv4/Netmask is a required field.  The KB instructions also show that an IP has to be entered.

  • 0 in reply to Lowell Picklyk

    Hi Lowell,

     

    Yes, an IP address and netmask is required when creating a new one, but when bridging to and existing interface it's not needed.

     

    is your goal to create a new interface with no IP settings and bridge certain ports to it? or create a bridge interface with a different IP address?

     

     

    Regards,

    Rap

     

     

  • 0 in reply to Ashen1

     Thanks for pursuing this with me.  The customer (small business) just needs 1 more LAN port available and their switch is full, don't want to buy a second managed switch for them just for 1 more port, being they will have absolutely no more devices added to the server room (the network room is in another area).  So the goal is to just make 1 of the 6 remaining available ports on the XG 125 available for the less-critical device I want connected to the network.

    When I go to create a new bridge, I select Port1 (LAN, with IP on the network as the network's gateway) and Port4, and select LAN zone, there's still a required IPv4 field and if I leave it blank I can't save the bridge as it says, "You must enter a valid IP for IP Address".  Here's a screenshot:

  • 0 in reply to Lowell Picklyk

    Hi Lowell,

     

    I think I'm getting your goal, you may try to put and IP for that bridge interface, a usable IP from within the specific network you are trying to bridge

     

    For example: network is 192.168.1.x /24, you can configure the bridge interface IP like this 192.168.1.254 /24 for it to have a connectivity to the network you are trying to bridge. 

     

     

    Let me know if i got your setup correctly, you can provide us a detailed network setup if possible. thanks

     

     

    Give it a shot, and let us know how it goes.

     

     

    Regards,

     

    Rap

Reply
  • 0 in reply to Lowell Picklyk

    Hi Lowell,

     

    I think I'm getting your goal, you may try to put and IP for that bridge interface, a usable IP from within the specific network you are trying to bridge

     

    For example: network is 192.168.1.x /24, you can configure the bridge interface IP like this 192.168.1.254 /24 for it to have a connectivity to the network you are trying to bridge. 

     

     

    Let me know if i got your setup correctly, you can provide us a detailed network setup if possible. thanks

     

     

    Give it a shot, and let us know how it goes.

     

     

    Regards,

     

    Rap

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