On 3/17/24 8:38 PM, Hangbin Liu wrote: > Wild guess, the last change of icmp_redirect is my netns update. Maybe > there are something default sysctl settings in netns cause the error?
It is most likely sysctl settings. It would be good to chase those down and make sure we have the script setting them. Mirsad: What OS are you testing with? That script has a verbose option (-v) to get more output like the commands run and pause-on-fail (-p) to manually debug at that point.
