Re: failed to create llentry

[Greg Troxel <gdt%lexort.com@localhost>]

coypu%sdf.org@localhost writes:

> Apparentlysome of the route table entries are special and should not be
> deleted.

indeed.

> After flushing them and attempting to add a default route, I get these
> messages over and over again.
>
> ifconfig iwm0 10.0.0.1 delete
> ifconfig iwm0 10.0.0.1
>
> re-creates the magical route stuff so I can add a default route again

The entry with flags "UC" is a "cloning route" which instructs the
kernel to perform ARP/ND and insert llinfo routes.  Typically these are
"UHLc".

Without the C route for the subnet, a packet will still match the
default route, but then there is no route for the IP addess of the
gateway.  Without a C route and without a UHLc route, there is no way to
arp.  It's the C route that directs that  the prefix should be handled
by arping (and on which interface).

So when you are flushing routes, don't delete that one.