nickskep Posted January 16 Posted January 16 Hello, I have a Netduma R2 and when I enable IPV6 I get bufferbloat and lower speeds. My speed is normally 300/300 and when I enable IPV6 i get around 100/100. i also notice web browsing is slower when using IPV6. Any known issues around this and or preferred settings that can be provided to run IPV6 optimally? Thanks.
Administrators Netduma Fraser Posted January 16 Administrators Posted January 16 What is the model of the modem/router the R3 is connected to and how have you set that to ensure all traffic flows to the R3? E.g. R3 in its DMZ, modem/bridge mode Where are you testing the speeds exactly? Do you have the Adblocker enabled on the R2?
nickskep Posted January 16 Author Posted January 16 Hi Fraser. My R2 is connected directly to ISP (Verizon Fios), with no modem in between, so no DMZ. I am testing on Bufferbloat.com. No Adblocker enabled.
Administrators Netduma Fraser Posted January 17 Administrators Posted January 17 Does the speed test on the router itself show higher? Can you provide a screenshot of the Device Manager table view please?
nickskep Posted January 17 Author Posted January 17 Yes, the speed on the Device Manager does show similar with IPV4 or IPV6 enabled.
Administrators Netduma Fraser Posted January 17 Administrators Posted January 17 So it says 1000Mbps link speed in both scenarios?
nickskep Posted January 18 Author Posted January 18 Sorry Fraser i didn't respond earlier, just got home from work. Here is the screenshot if it helps. This is with IPV6 enabled.
Administrators Netduma Fraser Posted January 18 Administrators Posted January 18 Port 2 is showing being limited to 100Mbps, do you have another cable you can swap out with that one to see if it resolves the issue?
Administrators Netduma Fraser Posted January 18 Administrators Posted January 18 I've given you Early Access, could you see if that firmware works better please? https://forum.netduma.com/forum/144-netduma-r2-early-access/
nickskep Posted January 20 Author Posted January 20 I upgraded, thank you for the access Fraser. Unfortunately similar poor results when IPV6 is enabled. As you can see with IPV6 disabled I have higher download speed and way less jitter. I notice this when web surfing as well. When I use IPV6 sites often take a long time to load and sometimes timeout. Please see results below: Any other settings to change possibly? IPV6 Enabled IPV6 Disabled
Administrators Netduma Fraser Posted January 20 Administrators Posted January 20 You can try disabling the protection options in troubleshooting settings, that may boost the speeds slightly but it's unlikely to be significant. In terms of the bufferbloat it's possible you'd need different Congestion Control values for IPv6 vs without
nickskep Posted January 20 Author Posted January 20 Thanks for the help Fraser. I think I will just keep IPV6 off, hopefully it can be improved in another update.
Administrators Netduma Fraser Posted January 20 Administrators Posted January 20 IPv6 seems to be something we're constantly trying to improve so I have hope!
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