Istio reports an operating system error, how to resolve it

[smallemployees]

Is this the right place to submit this?

• This is not a security vulnerability or a crashing bug
• This is not a question about how to use Istio

Bug Description

/proc/sys/net/ipv4/ip_unprivileged_port_start: no such file or directory

Version

istioctl version
client version: 1.15.7
control plane version: 1.15.7
data plane version: 1.15.7 (1 proxies)
[root@node89 ~]# kubectl version
Client Version: v1.28.2
Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3
Server Version: v1.28.2

Additional Information

No response

[leosarra]

Setting ip_unprivileged_port_start should have worked given that you are running the K8s 1.28.x.
I suspect you may have a very old kernel version. Which one are you running?
ip_unprivileged_port_start was added starting with kernel >=4.11