I'm experiencing an odd issue with SLAAC in VIRL: an interface set to configure itself with a global unicast address via SLAAC is still able to do so despite the only router interface by which it could 'learn' an advertised prefix is in the shutdown state.
description Link to SW2
ip address 10.12.1.2 255.255.255.0
no ip route-cache
ipv6 address autoconfig default
no cdp enable
I can't seem to work out why this is. If R1 is advertising its 2001:DB8:0:10::/64 prefix, how are these router advertisements able to get past R2's Gi0/2 interface (which is shutdown) and over to R3?
The situation remains the same if, in addition to the shutdown command on R2s Gi0/2 interface, I also right-click the connector on that interface in VM Maestro's active canvas select Disable Interface (no difference after then disabling and re-enabling R3's Gi0/1 interface).
I've attached the VIRL file - would be interested in seeing if anyone else gets the same issue - or if I'm missing something!