Document:
Setting options to warn user (they took no action anyway)
Following fw3 configuration options will have no effect on fw4 and emit a warning. If you wwere using them, consider migrating them to sysctl equivalents.
| option | sysctlequivalent | detail |
|---|---|---|
| disable_ipv6 | none | no equivalent |
| tcp_syncookies | net.ipv4.tcp_syncookies=1 | This is kernel default |
| tcp_ecn | net.ipv4.tcp_ecn=1 | Kernel default is 2, respond but dont initiate ecn |
| accept_redirects | net.ipv4.conf.all.accept_redirects/net.ipv6.conf.all.accept_redirects | More detailed control available via netifd /etc/config/network |
| accept_source_route | net.ipv4.conf.all.accept_source_route net.ipv6.conf.all.accept_source_route | More detailed control available using netifd |