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1/LAN stops working on XG230

AdamVanDusen

1 / LAN stops working.  We have had twice now where we lose all outside connections.  We have changed to a backup internet and can get to the web interface and use tools to ping anything on the outside through 2/WAN. We think we "fix" the issue by changing the port to DHCP or Static and rebooting.  We have gone from Static where we started to DHCP and it started working.  Stopped two days later, we changed back to static and rebooted.  Worked again.  That is where we currently are sitting.



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    HI AdamVanDusen, 

     

    As per your issue you loose internet connection after 2-3 days , seems consistent unless you reboot the appliance would need to conduct simple test 

    Test 1.

    First, check the arp table for WAN interface if the Gateway address is associated with a Mac Address . If it is complete then it is possible the ARP entry on the Router is deleted. If it shows "In-complete"  you may add a Static Arp Entry for the same and the MAC address would be your WAN gateway's MAC address.

    To diagnose this issue could you run a command in console/SSH 

    console >system diagnostics utilities arp ping interface PortB (Gateway address) 

    If you got the reply , you may check again if the internet connection is restored or not . 

    If the connection is restored then it is possible that the ISP gateway may have rebooted automatically and the ARP table on the router is wiped clean. Now at this stage the XG appliance already have an ARP entry and would not send again .

    You would need to follow two steps if necessary to maintain the ARP on the ISP gateway . 

    Connect a Common Layer 2 switch in between the WAN interface and ISP connection . If that does not work , Arp bind the MAC address with XG WAN address on the Gateway Router. 

    Hope this would resolve your issue. 

    Thanks and Regards

    Aditya Patel | Network and Security Engineer

     

     

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  • 0

    HI AdamVanDusen, 

     

    As per your issue you loose internet connection after 2-3 days , seems consistent unless you reboot the appliance would need to conduct simple test 

    Test 1.

    First, check the arp table for WAN interface if the Gateway address is associated with a Mac Address . If it is complete then it is possible the ARP entry on the Router is deleted. If it shows "In-complete"  you may add a Static Arp Entry for the same and the MAC address would be your WAN gateway's MAC address.

    To diagnose this issue could you run a command in console/SSH 

    console >system diagnostics utilities arp ping interface PortB (Gateway address) 

    If you got the reply , you may check again if the internet connection is restored or not . 

    If the connection is restored then it is possible that the ISP gateway may have rebooted automatically and the ARP table on the router is wiped clean. Now at this stage the XG appliance already have an ARP entry and would not send again .

    You would need to follow two steps if necessary to maintain the ARP on the ISP gateway . 

    Connect a Common Layer 2 switch in between the WAN interface and ISP connection . If that does not work , Arp bind the MAC address with XG WAN address on the Gateway Router. 

    Hope this would resolve your issue. 

    Thanks and Regards

    Aditya Patel | Network and Security Engineer

     

     

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