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quatreduros
PostPosted: Wed Mar 07, 2012 5:53 pm 
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I am working with Packet TRacer v5 software and my problem is that can't to enable the IPv6 in the router 2620xM

In the host, for example PC0 I can to configure the IPv 6 OK. But in the router using the next CISCO commands can't

Cisco Commmands for enable IPv6 in router

SUMMARY STEPS
1. enable
2. configure terminal
3. interface type number

4. ipv6 address ipv6-prefix/prefix-length eui-64
or
ipv6 address ipv6-address/prefix-length link-local
or
ipv6 address ipv6-prefix/prefix-length anycast
or
ipv6 enable
5. exit
6. ipv6 unicast-routing

Other question would be... what is the use of Link Local Address

Here attached the images of topology and configuration PC0 and Router 2620xM


Attachments:
File comment: I can't to configure the Ipv6 in this router.
ConfigurationRouter2620xM.jpg
ConfigurationRouter2620xM.jpg [ 91.08 KiB | Viewed 871 times ]
File comment: What is the Local Area Network of this address: 2010:1111:2222:1::C0A8:102?¿???¿¿
Ipv6InterfacePC0.jpg
Ipv6InterfacePC0.jpg [ 85.36 KiB | Viewed 871 times ]
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routerdork
PostPosted: Wed Mar 07, 2012 5:55 pm 
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You need to enable ipv6 unicast-routing first.
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jdsilva
PostPosted: Wed Mar 07, 2012 5:57 pm 
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Packet Tracer isn't a real IOS router. It has limitations, and doesn't support everything a real router does. Looks like you found something it doesn't support.

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jdsilva
PostPosted: Wed Mar 07, 2012 5:58 pm 
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routerdork wrote:
You need to enable ipv6 unicast-routing first.

That's not true. A router will behave as a host if ipv6 unicast-routing isn't enabled (won't send RA's and won't "route").

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routerdork
PostPosted: Wed Mar 07, 2012 6:01 pm 
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Infinite wrote:
routerdork wrote:
You need to enable ipv6 unicast-routing first.

That's not true. A router will behave as a host if ipv6 unicast-routing isn't enabled (won't send RA's and won't "route").

Huh. Never tried without. I'll have to mess around with that. I coulda swore I got an error before putting that on but I'm second guessing that and thinking it was when I added the OSPF commands to the interface.
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jdsilva
PostPosted: Wed Mar 07, 2012 6:05 pm 
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routerdork wrote:
it was when I added the OSPF commands to the interface.

That should for sure throw an error if you don't have routing enabled.

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routerdork
PostPosted: Wed Mar 07, 2012 6:13 pm 
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Infinite wrote:
routerdork wrote:
it was when I added the OSPF commands to the interface.

That should for sure throw an error if you don't have routing enabled.

Yep sure did. I remembered wrong.

Code:
R1(config-if)#ipv6 address fd00::1/64
R1(config-if)#ipv6 ospf 1 area 0
% IPv6 routing not enabled
R1(config-if)#
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Agent Zed
PostPosted: Thu Mar 08, 2012 9:12 am 
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hmm, I kind of remember setting is-is on interface without ipv6 unicast-routing. Back then it even got me scratch my head for two days as the routing table got all filled up with nice stuff ... still no ping though. Then again now that I think on it now it must be the awesomeness of OSI-ness :)
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jdsilva
PostPosted: Thu Mar 08, 2012 9:16 am 
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That sort of makes sense since ISIS doesn't use IPv6 as a transport. Like BGP, ISIS has extensions that allow it to carry IPv6 information without actually using IPv6.

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writeerase
PostPosted: Thu Mar 08, 2012 9:18 am 
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I think you answered your own question... IS-IS doesn't use IP for connectivity so you wouldn't need routing enabled for it to work. ;)

edit: beat me to it...
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