During the process of a VPN client configuration with xl2tpd and openswan ipsec verify command threw the following error: Disable /proc/sys/net/ipv4/conf/*/send_redirects or NETKEY will act on or cause sending of bogus ICMP redirects! To fix this we need to disable send_redirects and save changes in /etc/sysctl.conf so they will be permanent across reboots. Here is …
