Bug #8804


Netgate SG-1000 PPPoE Keepalives not prioritized, internet drops

Added by Tony Lloyd almost 6 years ago. Updated almost 5 years ago.

PPP Interfaces
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Hello, I have the Netgate SG-1000 and have Zen VDSL2+ internet in the UK. I have 80Mbps down, 20Mbps up. I am currently using the Draytek Vigor 130 as my modem in bridged mode and doing the PPPoE on the SG-1000. While the SG-1000 is capable of pushing my speeds over PPPoE, what it fails at doing is responding to the PPPoE keepalives from the PPPoE server when I utilize my full bandwidth, causing the server to send a terminate request. So when ever I utilize my full 80Mbps down, say download a game from Steam, give it a minute or two and my connection drops as a result. My ISP, Zen, confirms this is the issue. I believe it may be because the CPU in the SG-1000 is being pegged and prioritizing pf/NAT that it doesn't have enough CPU cycles to reply to the keepalive from the pppoe daemon. I tried doing the pppoe auth on the modem itself to offload this process but haven't had such success. I feel there may be something you can do to test and fix this issue within the SG-1000 itself and would definitely classify it as a bug as the SG-1000 should be able to do atleast 100Mbps even if it's PPPoE.

I have attached some logs to verify the incident.


disconnect.txt (21 KB) disconnect.txt The logs Tony Lloyd, 08/18/2018 07:18 PM
Actions #1

Updated by Jim Pingle almost 5 years ago

  • Category set to Interfaces
  • Priority changed from Very High to Normal

I'm not aware of any viable way for those to be prioritized, either internally in MPD or by traffic shaping. Your safest bet is likely to limit your speed slightly under the maximum with a limiter.

Actions #2

Updated by Jim Pingle almost 5 years ago

  • Category changed from Interfaces to PPP Interfaces

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