Hi Rene and staff,
since my last post i do create many personal labs with gns3 to test as many things as i can for ipv6 ND. I notice that “autoconfig default” dont work as i expected: it seems to give the same result as just “autoconfig”. I wonder why ?
This is the basic lab
R4 has a slot NM-16ESW to act like a SW
Only R1 and R2 are needed to ask my question (R1 acts as the client, R2 will act as the router)
First i configure R2
Second i configure R1 e0/0 (no default added)
And here are output of the show commands
A default route has been inserted in R1’s RIB pointing to R2
Since R2 is a router (unicast-routing), it sends RA, so by default, it has to appear in R1’s list of routers (?), and act like a possible default route (?), and this is the case in this topology
But what if you dont want R1 to have a default route via its interface e0/0 (for some reasons)
So, what “default” is used for ?
Does it take meaning in other topologies ?
Regards