[c-nsp] OSPFv3 Adjacency issues between 2921 and 3750

[Peter Subnovic]

Hi Chuck,

yes you have to configure a specific SDM template (and reboot the device)
in order to use IPv6.

I have already activated this, otherwise the 3750 does not recognize any
IPv6 commands.

3750#show sdm prefer
 The current template is "desktop IPv4 and IPv6 routing" template.

Thanks for your time.

Regards,
Peter


On Tue, Jul 3, 2012 at 11:43 AM, Chuck Church <chuckchurch at gmail.com> wrote:

> Long shot, but don't the 3750s have a certain SDM they need enabled to use
> IPv6?
>
> Chuck
>
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Peter Subnovic
> Sent: Tuesday, July 03, 2012 4:46 AM
> To: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] OSPFv3 Adjacency issues between 2921 and 3750
>
> Thanks to Pete for the pointer,
>
> i was curios why the 3750 does not respond to ff02::5 (the 2921), so i
> activated the debugging for ipv6 packets again and started to ping ff02::5
> from the 2921.
>
> Interestingly, i can't see the icmp packets at all (well atleast thats what
> the debug output is telling me on the 3750).
>
> The only thing i can see are the ospf hellos from the 2921...
>
> 2921#ping ipv6 ff02::5 size 1280
> Output Interface: GigabitEthernet0/1
> Type escape sequence to abort.
> Sending 5, 1280-byte ICMP Echos to FF02::5, timeout is 2 seconds:
> Packet sent with a source address of FE80::1%GigabitEthernet0/1
>
> Request 0 timed out
> Request 1 timed out
> Request 2 timed out
> Request 3 timed out
> Request 4 timed out
> Success rate is 0 percent (0/5)
> 0 multicast replies and 0 errors.
>
> And the debug output on the 3750 looks like this:
>
> Jul  3 10:41:10.424 CEST: IPV6: source FE80::1 (GigabitEthernet1/0/24)
> Jul  3 10:41:10.424 CEST:       dest FF02::5
> Jul  3 10:41:10.424 CEST:       traffic class 224, flow 0x0, len 80+14,
> prot 89, hops 1, forward to ulp
> Jul  3 10:41:20.096 CEST: IPV6: source FE80::1 (GigabitEthernet1/0/24)
> Jul  3 10:41:20.096 CEST:       dest FF02::5
> Jul  3 10:41:20.096 CEST:       traffic class 224, flow 0x0, len 80+14,
> prot 89, hops 1, forward to ulp
>
> Regards,
> Peter
>
>
>
> On Tue, Jul 3, 2012 at 10:05 AM, Peter Subnovic
> <cnspmail002 at googlemail.com>wrote:
>
> > Hi Pete,
> >
> > thanks for your time.
> >
> > The 3750 does not respond when i try to ping ff02::5. It does however
> > respond to the all-nodes/all-router ll Multicast address.
> >
> > The authentication configuration is only for ospfv2. So i think it
> > will not make any difference.I cant try it without right now.
> >
> > Thanks,
> > Peter
> >
> >
> > On Tue, Jul 3, 2012 at 5:27 AM, Pete Lumbis <alumbis at gmail.com> wrote:
> >
> >> Any difference without authentication? Does the 3750 respond to pings
> >> to ff02::5?
> >>
> >> On Mon, Jul 2, 2012 at 4:16 PM, Peter Subnovic
> >> <cnspmail002 at googlemail.com> wrote:
> >> > Dear list members,
> >> >
> >> > i am having a somewhat odd issue (again) and i am out of ideas what
> >> > is causing it.
> >> >
> >> > Let's assume the following very simple topology
> >> >
> >> > 2921 <----> 3750G-24PS
> >> >
> >> > All i want is to establish an OSPFv3 Adjacency between these two
> >> devices.
> >> > Here is where the fun (headache) begins:
> >> >
> >> > The 2921 is running 15.1(4)M3 and the 3750G is running 12.2(55)SE5.
> >> >
> >> > So i configured OSPv3 on both sides on the respective Interfaces
> >> > and wondered why the adjacency wont come up.
> >> >
> >> > After a little bit of troubleshooting it appears that the 3750G
> >> > does not "recognize" the hello packets from the 2921. I can see in
> >> > the debug
> >> output
> >> > that they are received by the switch, but the OSPFv3 Process does
> >> > not recognize them as such.
> >> >
> >> >
> >> > If you need any additional input or show commands, please dont
> >> > hesitate
> >> to
> >> > ask.
> >> >
> >> > I appreciate all hints/comments.
> >> >
> >> > Thanks in advance,
> >> >
> >> > Peter
> >> > _______________________________________________
> >> > cisco-nsp mailing list  cisco-nsp at puck.nether.net
> >> > https://puck.nether.net/mailman/listinfo/cisco-nsp
> >> > archive at http://puck.nether.net/pipermail/cisco-nsp/
> >>
> >
> >
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