Connectivity Guide

Congure neighbor discovery
OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# ipv6 nd mtu 1500
OS10(conf-if-eth1/1/1)# ipv6 nd send-ra
Congure advertised IPv6 prexes
OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# ipv6 nd prefix default lifetime infinite infinite
OS10(conf-if-eth1/1/1)# ipv6 nd prefix 2002::/64
Duplicate address discovery
To determine if an IPv6 unicast address is unique before assigning it to an interface, an OS10 switch sends a neighbor solicitation message.
If the process of duplicate address discovery (DAD) detects a duplicate address in the network, the address does not congure on the
interface. DAD is enabled by default.
By default, IPv6 is not disabled when a duplicate address is detected. Only the duplicate address is not applied. Other IPv6 addresses are
still active on the interface.
To disable IPv6 on an interface when a duplicate link-local address is detected, use the ipv6 nd dad disable-ipv6-on-failure
command. To re-enable IPv6 after you resolve a duplicate link-local address, enter no ipv6 enable, then the ipv6 enable
command.
• Disable or re-enable IPv6 duplicate address discovery in Interface mode.
ipv6 nd dad {disable | enable}
• Disable IPv6 on an interface if a duplicate link-local address is discovered in Interface mode.
ipv6 nd dad disable-ipv6-on-dad-failure
Disable duplicate address discovery
OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# ipv6 nd dad disable
Disable IPv6 for duplicate link-local address
OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# ipv6 nd dad disable-ipv6-on-dad-failure
Static IPv6 routing
To dene an explicit route between two IPv6 networking devices, congure a static route on an interface. Static routing is useful for smaller
networks with only one path to an outside network, or to provide security for certain trac types in a larger network.
• Enter the static routing information including the IPv6 address and mask in x:x:x:x::x format in CONFIGURATION mode. The length is
from 0 to 64.
ipv6 route ipv6–prefix/mask {next-hop | interface interface [route-preference]}
– next-hop — Enter the next-hop IPv6 address in x:x:x:x::x format.
– interface interface — Enter the interface type then the slot/port or number information.
– route-preference — (Optional) Enter a route-preference range, from 1 to 255.
After you congure a static IPv6 route, congure the forwarding router’s address on the interface. The IPv6 neighbor interface must have
an IPv6 address congured.
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Layer 3