sysctl: setting key "net.ipv4.conf.all.accept_source_route": Invalid argument While loading kernel modules for kubernetes

Following the indications found here: https://www.linuxtechi.com/install-kubernetes-on-ubuntu-22-04/ I'm trying to install Kubernetes cluster on Ubuntu 22.04

On Step 2 : Load the kernel module I'm getting an error on worker-1 :

root@k8s-eu-1-worker-1:~# sudo tee /etc/modules-load.d/containerd.conf <<EOF> overlay> br_netfilter> EOFoverlaybr_netfilterroot@k8s-eu-1-worker-1:~# sudo tee /etc/sysctl.d/kubernetes.conf <<EOF> net.bridge.bridge-nf-call-ip6tables = 1> net.bridge.bridge-nf-call-iptables = 1> net.ipv4.ip_forward = 1> EOFnet.bridge.bridge-nf-call-ip6tables = 1net.bridge.bridge-nf-call-iptables = 1net.ipv4.ip_forward = 1root@k8s-eu-1-worker-1:~# sudo sysctl --system* Applying /etc/sysctl.d/10-console-messages.conf ...kernel.printk = 4 4 1 7* Applying /etc/sysctl.d/10-ipv6-privacy.conf ...net.ipv6.conf.all.use_tempaddr = 2net.ipv6.conf.default.use_tempaddr = 2* Applying /etc/sysctl.d/10-kernel-hardening.conf ...kernel.kptr_restrict = 1* Applying /etc/sysctl.d/10-magic-sysrq.conf ...kernel.sysrq = 176* Applying /etc/sysctl.d/10-network-security.conf ...net.ipv4.conf.default.rp_filter = 2net.ipv4.conf.all.rp_filter = 2* Applying /etc/sysctl.d/10-ptrace.conf ...kernel.yama.ptrace_scope = 1* Applying /etc/sysctl.d/10-zeropage.conf ...vm.mmap_min_addr = 65536* Applying /usr/lib/sysctl.d/50-default.conf ...kernel.core_uses_pid = 1net.ipv4.conf.default.rp_filter = 2net.ipv4.conf.default.accept_source_route = 0sysctl: setting key "net.ipv4.conf.all.accept_source_route": Invalid argumentnet.ipv4.conf.default.promote_secondaries = 1sysctl: setting key "net.ipv4.conf.all.promote_secondaries": Invalid argumentnet.ipv4.ping_group_range = 0 2147483647net.core.default_qdisc = fq_codelfs.protected_hardlinks = 1fs.protected_symlinks = 1fs.protected_regular = 1fs.protected_fifos = 1* Applying /usr/lib/sysctl.d/50-pid-max.conf ...kernel.pid_max = 4194304* Applying /usr/lib/sysctl.d/99-protect-links.conf ...fs.protected_fifos = 1fs.protected_hardlinks = 1fs.protected_regular = 2fs.protected_symlinks = 1* Applying /etc/sysctl.d/99-sysctl.conf ...net.ipv6.conf.all.disable_ipv6 = 1kernel.panic = 10* Applying /etc/sysctl.d/kubernetes.conf ...net.ipv4.ip_forward = 1* Applying /etc/sysctl.conf ...net.ipv6.conf.all.disable_ipv6 = 1kernel.panic = 10

What's going on? How to make it work without errors?