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 <[email protected]>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 <[email protected]> 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 >> <[email protected]> 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 [email protected] >> > https://puck.nether.net/mailman/listinfo/cisco-nsp >> > archive at http://puck.nether.net/pipermail/cisco-nsp/ >> > > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
