Hacker News new | ask | show | jobs
by CrLf 2 hours ago
There are maybe many buggy routers still out there that reset the IPv6 flow label field when they shouldn't, breaking hash-based load-balancers (the symptom is TCP connections spontaneously reset).

IIRC, a workaround was to prevent Linux from setting this field, or force-reset it on every outbound packet using netfilter.