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wait_i-m_low's avatar
wait_i-m_low
Guide
Oct 22, 2018

xr500 ip fragmentation ps4

Hello i have an ip fragmentation Problem with the new Duma Os. I use the xr 500 and already test my MTU. MTU max is 1472 but i still get the IP fragmentation message when the PS4 hits the NAT test ...
FURRYe38's avatar
FURRYe38
Guru - Experienced User
Oct 22, 2018

What FW is currently loaded?
What is the Mfr and model# of the ISP modem the NG router is connected too?

 

Is the PS wired or wirelessly connected to the XR router? 

wait_i-m_low's avatar
wait_i-m_low
Guide
Oct 22, 2018
It’s wired
Fritzbox 6490 cable with the last available Firmware from Fritz
I also have the last available firmware on the xr router. 2.3.2.32
  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User
    Oct 22, 2018

    You ISP modem already has a router built in:

    https://en.avm.de/products/fritzbox/fritzbox-6490-cable/technical-data/

     

    Modem Combo Units:
    Couple of options,
    1. Configure the modem for transparent bridge mode. Then use the NG router in router mode. You'll need to contact the ISP for help and information in regards to the modem being bridged correctly.
    2. If you can't bridge the modem, disable ALL wifi radios on the modem, configure the modems DMZ for the IP address the NG router gets from the modem.

    • wait_i-m_low's avatar
      wait_i-m_low
      Guide
      Oct 22, 2018
      Yes it has a router buildin but I made everything with the isp support and it’s already in bridgemode in lan port 2.
      I also dmz the up from the xr. And turn all wifi off.
      • Netduma-Fraser's avatar
        Netduma-Fraser
        NetDuma Partner
        Oct 22, 2018
        Where have you set MTU? Just on the PS4 itself? You should also mirror this on the router so they're the same. If you reset the MTU does it work correctly? If so then you either haven't worked it out correctly or you're not inputting it in all the places needed.
      • FURRYe38's avatar
        FURRYe38
        Guru - Experienced User
        Oct 22, 2018

        DMZ is not needed on the ISP modem if the modem fully in bridge mode...Are you sure the modem is in bridge mode? You can tell by looking at the IP address on the XR WAN port. It should be a public IP address, something like ##.##.###.### and not a 192 or 172 or 10 something IP address which is private. 

         

        I would set the MTU to auto as well...unless your having the XR router handle any ISP connection information like PPPoE.

        What is your ISP speed UP and down that you pay for? 

        What is your QoS and Current Filter settings on the XR? 

        Review this for XR optimal settings:

        http://support.netduma.com/support/solutions/articles/16000023979-optimal-settings-guide