These changes are based on the sysctl recommendations by Frr [1].
Not all recommendations have been incorporated, e.g., ip forwarding is
not enabled per interface, because in Infix this is an opt-in feature.
A readme.txt has been added, documenting the various settings.
New for IPv4:
- Adjust IGMP max memberships: 20 -> 1000
- Use neighbor information on nexthop selection
- Use inbound interface address on ICMP errors
- Ignore routes with link down
- Disable rp_filter
ARP settings have been changed to better fit routers, i.e., systems
with multiple interfaces:
- Always use best local address when sending ARP
- Only reply to ARP if target IP is on the inbound interface
- Generate ARP requests when device is brought up or HW address changes
New for IPv6:
- Keep static global addresses on link down
- Ignore routes with link down
Fixes#829
[1]: https://github.com/FRRouting/frr/blob/master/doc/user/Useful_Sysctl_Settings.md
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
With Classic builds out of the way we can move everything back to common
again to simplify and reduce our collective cognitive overhead a bit.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Joachim Wiberg