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Forum Discussion
XR500 Static Route dropping packets
I'm running into an issue with my XR500 router. I'm running the lastest stable firmware (check from router indicates latest version).
I have a virtualization server that I'm hosting a Linux bridged network on. I have configured a static route in the router to route 172.16.0.0/12 to a fixed address 192.168.1.26 on my network.
What I'm seeing is intermittent TCP retransmissions while conntected to a VM on the bridged network. There does not seem to be rhyme or reason for when the packet drops start occurring.
I have monitored from the client machine using wireshark and from the virtualization host using tcpdump. When the retransmissions start (as seen from the client) I do not see them reaching the virtualization host interface.
I disabled the static route on the router and manually entered the route on my laptop. Monitoring again, I am seeing no retransmissions.
My only thought is that the router is for some reason (randomly) dropping packets. I don't know if this is QoS related or not and have tried to disable QoS and geo-filtering with no impact while on the static route on the router.
Any help would be appreciated.
5 Replies
- It could be QoS related - how did you disable it? It should be disabled from the Anti-Bufferbloat 3 line menu to make sure. How do you have your router setup as well?
I went into the administrative screens, under QoS set anti-buffer bloat to Never, turned off traffic prioritization.
There are no geo-filter devices set.
My network is a little more complex than most.
I have disabled DHCP on the router. I have a linux server hosted on 192.168.1.2 configured to serve DHCP & DNS functions.
Network is configured as 192.168.1.0/24.
I have a linux virtualization server hosted at 192.168.1.26 (static IP). Underneath that server I have a linux bridge configured to host a virtualized set of networks (currently 1) in the 172.16.0.0/12 range. The hosted virtual network is 172.16.1.0/24. I have configured routing and masquerading and am able to successfully reach hosts on that network as well as have them reach the internet and local lan.
Try completely disabling QoS. On the anti-bufferbloat panel, there's a side menu which contains a full Disable for QoS. This will allow us to narrow down the problem.
