09-14-2012 11:06 AM - edited 03-01-2019 05:36 PM
I have the following network:
I have not configured OSPFv3 yet but all the IPs and interfaces are configured as shown. However I am finding that the show ipv6 neighbors command is not showing anything. My understanding is that this is like the ARP table for IPv4. I can even see NS and NA message bouncing back and forth through debugging and wireshark but nothing shows in the neighbor table and I dont know why.
R1(config)#int ser0/1
R1(config-if)#shut
*Mar 1 00:11:03.511: ICMPv6-ND: Address 2015:43AE::19/64 is down on Serial0/1
*Mar 1 00:11:03.515: ICMPv6-ND: Linklocal FE80::C000:2CFF:FEA8:0 on Serial0/1, Down
*Mar 1 00:11:03.515: ICMPv6-ND: Address FE80::C000:2CFF:FEA8:0/10 is down on Serial0/1
*Mar 1 00:11:05.499: %LINK-5-CHANGED: Interface Serial0/1, changed state to administrativelydown
*Mar 1 00:11:06.499: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to down
R1(config-if)#no shut
*Mar 1 00:11:14.247: %LINK-3-UPDOWN: Interface Serial0/1, changed state to up
*Mar 1 00:11:14.251: ICMPv6-ND: Sending NS for FE80::C000:2CFF:FEA8:0 on Serial0/1
*Mar 1 00:11:15.255: ICMPv6-ND: DAD: FE80::C000:2CFF:FEA8:0 is unique.
*Mar 1 00:11:15.255: ICMPv6-ND: Sending NA for FE80::C000:2CFF:FEA8:0 on Serial0/1
*Mar 1 00:11:15.259: ICMPv6-ND: Linklocal FE80::C000:2CFF:FEA8:0 on Serial0/1, Up
*Mar 1 00:11:15.259: ICMPv6-ND: Address FE80::C000:2CFF:FEA8:0/10 is up on Serial0/1
*Mar 1 00:11:15.267: ICMPv6-ND: Sending NS for 2015:43AE::19 on Serial0/1
*Mar 1 00:11:15.271: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to up
*Mar 1 00:11:16.271: ICMPv6-ND: DAD: 2015:43AE::19 is unique.
*Mar 1 00:11:16.271: ICMPv6-ND: Sending NA for 2015:43AE::19 on Serial0/1
*Mar 1 00:11:16.275: ICMPv6-ND: Address 2015:43AE::19/64 is up on Serial0/1
R1(config-if)#do show ipv6 nei
R1(config-if)#
Can anyone please help?
09-14-2012 01:08 PM
What about non p2p interface ? E.g. Ethernet ?
Sent from Cisco Technical Support iPhone App
09-15-2012 02:47 AM
You are correct. Everything works fine on a LAN interface.
Thank you very much.
Why does it not work on a p2p interface?
09-15-2012 02:32 AM
Steven,
You should see it for the ethernet segmet.
Regards,
Deepak Ambotkar
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