Alcatel-Lucent OmniSwitch 10K - Troubleshooting Dhcpv6 Relay

OmniSwitch OS6860/OS6900/OS10K Troubleshooting Guide Part No.032996-00 Rev.A
AOS Release 7.X and 8.X January 2015
Alcatel-Lucent Page 147 of 148
> show ipv6 traffic
Message Current Previous Change
------------------------+----------+----------+----------
Packets received
Total 23 10 13
Header errors 0 0 0
Too big 0 0 0
No route 0 0 0
Address errors 0 0 0
Unknown protocol 0 0 0
Truncated packets 0 0 0
Local discards 0 0 0
Delivered to users 13 5 8
Reassembly needed 0 0 0
Reassembly failed 0 0 0
Multicast packets 8 4 4
Packets sent
Forwarded 0 0 0
Generated 34 23 11
Local discards 2 2 0
Fragmented 0 0 0
Fragmentation failed 0 0 0
Fragments generated 0 0 0
Multicast packets 44 36 8
sno-lab-r1-6860> show ipv6 route-pref
Protocol Route Preference Value
------------+------------------------
Local 1
Static 2
OSPF 110
ISISL1 115
ISISL2 118
RIP 120
EBGP 190
IBGP 200
The show ipv6 traffic command gives switch-wide statistics for IPv6 traffic. The value for “No Route
Discards” should be similar to the “icmp stats destination unreachable” number, and both values should be
increasing at a similar rate. “No Route Discards” on a network is a normal occurrence, but the values should be
increasing at a similar rate.
The route preference value of IPv4 is different than IPv6.
24.2. Troubleshooting DHCPv6 Relay
The DHCPv6 Relay on the OmniSwitch processes and forwards all DHCPv6 messages between clients and the
configured DHCPv6 relay agent as a unicast packet.
A maximum of five unicast or link-scoped multicast relay destinations can be configured for each interface on
which DHCPv6 Relay is enabled. The DHCPv6 relay for the interface will be automatically disabled when all
the relay destinations configured for that interface are removed.
> show ipv6 dhcp relay
DHCPv6 Relay: Enabled
When the relay interface and the relay destination are configured the output is below:
> show ipv6 dhcp relay
DHCPv6 Relay: Enabled
Interface Relay Destination(s) Status
---------------------------+-----------------------------------------+--------