VLAN context Neighbor Discovery (ND) configuration This section describes commands for ND configuration. Configuring DHCPv6 service requirements Configuring the range for intervals between RA transmissions on a VLAN Setting or changing the hop-limit for host-generated packets Setting or changing the default router lifetime Changing the reachable time duration for neighbors Setting or changing the neighbor discovery retransmit timer Configuring the global unicast prefix and lifetime for hosts on a VLAN Suppressing RAs on a VLAN Restricting IPv6 RAs